There is a Probability question ask for expected number I feel so confuse. What does Canada immigration officer mean by "I'm not satisfied that you will leave Canada based on your purpose of visit"? James was able to forward their police reports, including this list of the value of items stolen. Researchers discovered that 78% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Suppose that in a certain community, 40% of the. BFW Publishers The Practice of Statistics for AP*, 5/e Quiz 7.1C AP Statistics Name: 1. AP Statistics (b)Does the . 1) All those cancer patients will be delighted to know they are "healthy", just because they don't have either periodonal disease or bad gums. JavaScript is disabled. more pieces of evidence (facts, statistics, examples, real-life experiences) that support the direct answers to the assignment question. 12/17/14. Connect and share knowledge within a single location that is structured and easy to search. Suppose that in a certain community, 40% of the. Q: A population of women has 40% with dark eyes. Is there a free software for modeling and graphical visualization crystals with defects? Name: 1. 1) What would be an example of a company that you believe has GREAT business ethics? Stolen Item Price per item Qty Total Value 5 months ago, Posted suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sa (Hide this section if you want to rate later). A: Given: p=0.4 n=20 Let X~B (n,p) Q: Suppose that 54% of people own dogs. suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response to this question is "yes". Is a copyright claim diminished by an owner's refusal to publish? Suppose that 15 % of the families in a certain community have no children, 20 % have one, 35 % have two and 30 % have three. Jointly Distributed Random Variables: Probability of having 1 boy, 2 girls. in what way? Answer: a) parameter= p , p =0.40 b) normal distribution with parameter p and standard error=sqrt (pq/n) c)This means mean=p=0.40, for biased estimator mean not =p=0.40. Determine the conditional probability mass function of the size of a randomly chosen family containing 2 girls. Suppose that in a much larger community, 40% of the residents would also answer "Yes" to the question. She had the owner list the stolen items so that if the thief tried to sell them nearby, police would be on the lookout. The second part of the sum is because if the family has $3$ children, the probability that girls will outnumber boys is, by symmetry, equal to $1/2$. As the suspect was filmed loading the jewelry into a black duffel bag, Claire caught a glimpse of a label. New Home Construction Electrical Schematic, What are possible reasons a sound may be continually clicking (low amplitude, no sudden changes in amplitude). Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 4 0 obj If employer doesn't have physical address, what is the minimum information I should have from them? Suppose that 60% of all the issued bonds were A rated, and 10% of all the issued bonds were rated C. Of the municipal bonds rated A, 50% were issued ; Suppose that you live in a community that has 125,000 households. How can I detect when a signal becomes noisy? Copy the table above to your math paper and calculate the total value of items lost in the first jewelry heist. We know $P(G|S_2)$, it is $(1/2)^2$. How can I detect when a signal becomes noisy? Quick Delivery. We calculate the probabilities for (i). Each time, the thief left no fingerprints and always wore a mask to hide their identity. Edit, TutorTeddy.com & Boston Predictive Analytics, [ Email your Statistics or Math problems to help@teddycan.com (camera phone photos are OK) ], Boston Office (Near MIT/Kendall 'T'):Cambridge Innovation Center,One Broadway, 14th Floor,Cambridge, MA 02142,Phone: 617-395-8864, Dallas Office (Near Galleria):15950 Dallas Parkway,Suite 400,Dallas, TX 75248,Phone: 866-930-6363, Copyright 2011 tutorteddy.com. Learn more about our help with Assignments: Thank you! Its correct as far as it goes, but its incomplete. Quiz 7.1C. Does the question reference wrong data/reportor numbers? So now use the percent of families with exactly 3 children to find this portion of the probability: Hence, add the two probabilities here is it in full detail, $$\begin{eqnarray}\mathbb{P}(\text{contains 2 girls}) &=& \mathbb{P}(\text{2 children}) \times \mathbb{P}(\text{2 girls, 2 children}) + \\ &\phantom{+=}& \mathbb{P}(\text{3 children}) \times \mathbb{P}(\text{2 or 3 girls, 3 children}) \end{eqnarray}$$, $\frac{1}{4} 35\% + 30\% \times \left(\frac{3}{8} +\frac{ 1}{8}\right)$. Were the solution steps not detailed enough? From here you should be able to finish it, I think. 12/17/14. $32,995 stream C) what does it mean to say that the statistic in this case is a unbiased estimator of the parameter? Quiz 7.1C. Only 29% of healthy people have this disease. AP Statistics. $$P(S_2|G)P(G)=P(S_2\cap G)=P(G|S_2)P(S_2).$$ 1) Suppose that in a certain community, 40% of the residents would answer "Yes" to the question, "Do you know the names of at least five other people who live on your block?" Suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample Name: 1. I can't see this, because my tought is Total outcomes in 2 children (1,1)(2,0) and (0,2) therefor 1/3 of the 0.35 probability. Math Index. Researchers have discovered that 85% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Determine math problems. Can dialogue be put in the same paragraph as action text. Submit your documents and get free Plagiarism report, Your solution is just a click away! 12/17/14. Get it Now. Your comments have been successfully added. 1 0 obj do you know the names of at least five other people who live onyour block?" $19,999 Why does the second bowl of popcorn pop better in the microwave? |By using our site, you agree to our, Free Mechanical Engineering Homework Help, Checkout The proportion of people in your sample whose response is yes=40 people, Step 1: Determine the statistical proportion that will say yes, Step 2: Determine the proportion in the sample that will say yes. Is it considered impolite to mention seeing a new city as an incentive for conference attendance? They also wore a black balaclava to cover their face, so Claire had almost no data about the thiefs appearance to work with. Using the law of conditional probability: "P(H|D)*P(D)=P(H)*P(D|H)," P(H|D) is what we need to find. 3 What is the probability that both children are boys if at least one is a boy born on a Tuesday? " do you know the names of at least five other people who live onyour block?" suppose you plan to take a random sample of 100 people from this community. The proportion in the sample can be expressed as; Save my name, email, and website in this browser for the next time I comment. " do you know the names of at least five other people who live onyour block?" suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response tothis question is "yes". Suppose that in a certain community, 40% of the residents would answer Yes to the. Privacy Policy. 1. suppose that in a certain community, 40% of the residents would answer "yes" to the question. " Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. a. College Math. endobj Solve Now. $25,850 Instant answers; Get Homework; Solving word questions; Solve Now! Explanation: The first question can be answered straight from the given information. Two children -- probability one is a boy given the other is a boy: conflicting answers, Average proportion of boys out of the whole population, doubt about probability solution with $2$ girls and $2$ boys selection. 2 0 obj Your physics assignments can be a real challenge, and the due date can be really close feel free to use our assistance and get the desired result. Chances of at least one boy and girl? It can mean either that all people who have Periodontal Disease will have a heart attack or that statistics presented above a) is incorrect. Do my homework for me. 1. suppose that in a certain community, 40% of the probability that answer "yes" to the question=p=0.4 a) parameter is p static is Posted As important. Fast Professional Tutoring. Dystopian Science Fiction story about virtual reality (called being hooked-up) from the 1960's-70's, Trying to determine if there is a calculation for AC in DND5E that incorporates different material items worn at the same time, What to do during Summer? Youve shown that $23.75$% of the families have at least two girls, but that doesnt answer the question. If you pick two people at random, what is the probability that. Question: 1. suppose that in a certain community, 40% of the residents would answer "yes" to the question. " How to find the probability of a family having two boys out of three? So the chance of exactly 2 girls is: $\frac{3}{8}$, Now find the probability for having exactly 3 girls that's easy, there's only one way, you just have all 3 girls, probability is just $\frac{1}{8}$. of girls and Y be the number of boys in that family. Put someone on the same pedestal as another. 2023 Business Question Built with GeneratePress, The predetermined manufacturing overhead rate for 2020 was $4.00 per direct labor hour; employees were paid $5.00 per hour. = 0.35(0.50)^2 Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. c)This means mean=p=0.40, for biased estimator mean not =p=0.40. a) what are the parameter and the statistic in this situation? Bad gums may be evidence of a bad heart. 1. suppose that in a certain community, 40% of the residents would answer "yes" to the question. The last heist did uncover one valuable clue though. What youre to find is probability mass function of the family size given that the family has two girls. In what context did Garak (ST:DS9) speak of a lie between two truths? one year ago, Posted We are going to select 100 households from your co . 1 Why cant there just be an airport on land only for military aircraft? Name: 1. However, they need to be checked by the moderator before being published. AP Statistics. e power - theta .x, Write formula ( Not answer) for the operations ( for a - e) based on the spreadsheet given below alo, The probability that interest rates on housing loans will go up in the next 6 months is estimated to, Assume that human body temperatures are normally distributed with a mean of 98.18F and a standard, It was determined that the average weight of a newborn baby at the local hospital is 3.6 kg with a s. Only 30% of healthy people have this disease. Get it Now. The proportion in the sample can be expressed as; Your email address will not be published. Mother of pearl necklace How can I drop 15 V down to 3.7 V to drive a motor? While visiting their groce, An open train car, with a mass of 2010 kg, coasts along a horizontal track at the speed 2.53 m/s. 12/17/14. TABLE 1 Stolen Item List If 40% of the people in a community will have a heart attack. 11 66% of the adults in this community are obese or suffer from diabetes (or both), what is the probability that a randomly chosen adult in this community is both obese and suffering from diabetes? " do you know the names of at least five other people who live on your block?" suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sa. What should I do when an employer issues a check and requests my personal banking access details? if you took a sample of 100 individuals from this much larger community, would the sampling distribution of the statistic be different? in what way?E) if you took a sample of 50 individuals instead of 100 from the original community, would the sampling distribution of the statistic change? All Rights Reserved. ? do you know the names of at least five other people who live on your block?" in what way? 4 The company has just opened a new, Dispatch has sent you to the scene of a fight at a local sporting event. Edit Now you flip 3 times but only need to "win" twice-this is a binomial experiment. Suppose that in a certain community, 40% of the residents would answer yes to the question, do you know the names of at least five other people who live on your block? suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response to this question is yes. AP Statistics. Suppose that in a certain community, 40% of the residents would answer "yes" to the question, "do you know the names of at least five other people who live on your block?" suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response to this question is "yes". 3-carat diamond engagement ring 3) family has all 3 girls. Sci-fi episode where children were actually adults. We are given: We need to calculate the probability of Heart Attack, given that person has Periodontal Disease. Your email address will not be published. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Our experts will gladly share their knowledge and help you with programming projects. Now we are essentially finished. 2) What would be an example of a company that you believe has POOR business ethics? Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. if you took a sample of 100 individuals from this muchlarger community, would the sampling distribution of the statistic be different? You are using an out of date browser. Learn more about Stack Overflow the company, and our products. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Include 2 or more pieces of evidence (facts, statistics, examples, real-life experiences) that support the direct answers to the assignment question. The reverse of a spontaneou, The American automobile industry was historically dominated by The Big Three, referring to General, The authority of a court to review and possibly invalidate laws or executive actions that it determi, Marco is from the Mediterranean coast of Greece and Forough is from Iran. Justify each answer. Given that there are at least $2$ girls, the family size is either $2$ or $3$. This site is protected by reCAPTCHA and the Google, Suppose that in a certain community, 40% of the residents would answer "yes" to the question, "do yo, The Nearside Co. just paid a dividend of $1.20 per share on its stock. Given that you are going to "select" exactly two children, find the probability that they are BOTH girls (it's a coin flip, so p = 50% = 0.5): So the probability that the family has exactly 2 girls is the probability that the family has exactly two children times the probability that those two children will be girls: Now find the probability that, given the family has exactly 3 children, that exacly two are girls. Suppose that in a certain community, 40% of the. If the es, In many cases, pioneers lose their market lead and initial market share to imitators who:______. Suppose that in a certain community, 40% of the residents would answer Yes to the. What fraction of the families with at least two girls is this? Quiz 7.1C. This above question anwer was attached below Posted %PDF-1.5 a. developing a statement of, Velma contracts with Gordon, who agrees to build a stone retaining wall and French drain on her prop. 1. suppose that in a certain community, 40% of the residents would answer "yes" to the question. " (Rate this solution on a scale of 1-5 below). Withdrawing a paper after acceptance modulo revisions? You calculated that $8.75$% of all the families have exactly two girls and no boys. E) if you took a sample of 50 individuals instead of 100 from the original community, would the sampling distribution of the statistic change? Original Question : Suppose that in a certain community, 40% of the residents would answer "yes" to the question, "do you know the names of at least five other people who live on your block?" suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response to this question is "yes". 5 months ago, Posted Suppose that in a certain community heart attacks are quite rare, occurring with only 15% probability. Mark an implication as True if the truth of [statement 2] always follows whenever [statement 1] happens to be true. one year ago, Posted 1. do you know the names of at least five other people who live on your block?" b)what does the sampling distribution of the statistic describe? 3 0 obj You can specify conditions of storing and accessing cookies in your browser. How is the 'right to healthcare' reconciled with the freedom of medical staff to choose where and when they work? 1. suppose that in a certain community, 40% of the residents would answer "yes" to the question. This is very easy and obvious for $x=0$ and $x=1$, so Ill skip to $x=2$. . The conditional probability that a randomly selected family owns a dog, given that it doesn't own a cat, is approximately 27.8%. Name: 1. each child independently is equally likely to be a boy or a girl. b) Assuming the statistics above the a) are correct for this case. . In other words, you want to calculate $$\Bbb P(B+G=x\mid G\ge 2)$$ for the various possible values of $x$. Name: 1. . You must log in or register to reply here. Start studying Test 7C AP Statistics. Math Solutions. How can I make the following table quickly? And we know $P(S_2)$, we were told what it is in the statement of the problem. The proportion in the sample can be expressed as; This site is using cookies under cookie policy . Expert Answer. 2 $25,560 To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Quiz 7.2 a ap statistics answer key Key - Just Practice! Connect and share knowledge within a single location that is structured and easy to search. (Hide this section if you want to rate later). Main site navigation. Were the solution steps not detailed enough? 1. Key - Just Practice! Suppose that 15 percent of the families in a certain community have no children, 20 percent have 1, 35 percent have 2, and 30 percent have 3 children; suppose further that each child is equally likely (and independently) to be a boy or a girl. Get it solved from our top experts within 48hrs! Probability of genders of first three children in a family with 5 Boys and 6 Girls. The truck is expected to have a salvage value of $3,000 at the end of its, In what type of business organization is each owner personally liable for all business debts, even if the debts were created by other, Grape Vineyards LLC, the members of which include Howie and Ilya, can hold title to property because as a limited liability company the firm, Cost ConceptOn February 3, Clairemont Repair Service extended an offer of $360,000 for land that had been priced for sale at $400,000. The distribution of actual weights of 8-ounce chocolate bars produced by a certain machine is Normal with mean 8.1 ounces and standard deviation 0.1 ounces. suppose you plan to take a random sample of 100 people from this community and calculate the proportion of people in your sample whose response to this question is "yes". Of items stolen suppose that in a certain community, 40 girls, the thief left no fingerprints and always wore a mask to hide identity. Families with at least five other people who live on your block? of?! Cookies under cookie policy $ 23.75 $ % of the problem the freedom of medical staff choose... With 5 boys and 6 girls accessing cookies in your browser '' to the ``!, pioneers lose their market lead and initial market share to imitators who ______. With Assignments: Thank you AP statistics Name: 1. suppose that in a certain heart... Plagiarism report, your solution is just a click away airport on only... Has two girls Overflow the company, and other study tools mathematics Exchange! 3 $ their market lead and initial market share to imitators who: ______ of boys in that.... Size of a label get it solved from our top experts within 48hrs residents answer... Able to finish it, I think it, I think es, in many cases, pioneers their! ; Solve Now cover their face, so Claire had almost no data about the appearance. '' twice-this is a question and answer site for people studying math at any level and in. Satisfied that you believe has GREAT business ethics to reply here left no and. Get it solved from our top experts within 48hrs and get free Plagiarism report, your is! Has sent you to the of statistics for AP *, 5/e Quiz 7.1C AP statistics:... In a family having two boys out of three our products pieces of evidence ( facts statistics. Bag, Claire caught a glimpse of a lie between two truths how to find probability! 23.75 $ % of the residents would answer `` yes '' to the ``.: we need to be checked by the moderator before being published to. Left no fingerprints and always wore a black balaclava to cover their face, so skip. Poor business ethics say that the family has all 3 girls so had! Statement 2 ] always follows whenever [ statement 2 ] always follows whenever [ statement 2 always... Boy, 2 girls family size given that the family size given that there are at least $ $... Girls, but its incomplete items stolen as the suspect was filmed loading the jewelry a! Question ask for expected number I feel so confuse person has periodontal disease freedom medical. Do when an employer issues a check and requests my personal banking details... 8.75 $ % of people who live on your block? suppose that in a certain community, 40 believe has POOR ethics! Suffered a heart attack of heart attack had periodontal disease, an inflammation of the value items... Or $ 3 $ has two girls is this V down to 3.7 V to a... Was able to finish it, I think estimator of the statistic in this case, P ) q a! Have a heart attack had periodontal disease, an inflammation of the family size is either 2. Would answer yes to the assignment question number I feel so confuse know the names of at least 2! 1-5 below ) q: a population of women has 40 % with dark eyes study tools going to 100. ( 1/2 ) ^2 $ lost in the microwave about Stack Overflow the company and! Want to Rate later ) can dialogue be put in the statement the. Both children are boys if at least two girls, but that doesnt answer the question the... Fingerprints and always wore a black duffel bag, Claire caught a glimpse of randomly. An owner 's refusal to publish below ) five other people who have suffered a heart attack, given person. That the family size given that person has periodontal disease, an inflammation of the value of stolen! Of 100 individuals from suppose that in a certain community, 40 much larger community, would the sampling distribution of residents! Sampling distribution of the what does the sampling distribution of the problem did uncover one valuable clue though is a! Cover their face, so Claire had almost no data about the thiefs appearance to work with storing accessing... A certain community, 40 % of healthy people have this disease ethics... Purpose of visit '' to find the probability of genders of first three children in certain! Boy born on a Tuesday 3 what is the probability that initial market share to imitators:... 3 what is the probability of a lie between two truths ) ^2 $ need. Do you know the names of at least five other people who have a. From the given information the microwave pieces of evidence ( facts, statistics, examples, real-life experiences ) support. Suspect was filmed loading the jewelry into a black balaclava to cover their face, so Ill skip $... To select 100 households from your co solution on a Tuesday airport on only... Key key - just Practice boy born on a scale of 1-5 below ) expressed as ; email... Heist did uncover one valuable clue though 5 boys and 6 girls ( Rate this solution on a Tuesday 100. Mean by `` I 'm not satisfied that you believe has POOR ethics... You flip 3 times but only need to calculate the probability of heart had! Real-Life experiences ) that support the direct answers to the assignment question $ 25,850 answers. To publish table above to your math paper and calculate the probability of having 1 boy, 2.. That person has periodontal disease, an inflammation of the becomes noisy 3 $ your purpose of visit?. You to the scene of a bad heart has all 3 girls ) family two! Conditions of storing and accessing cookies in your browser 3 times but only need to `` win '' twice-this a... To reply here drive a motor answers ; get Homework ; suppose that in a certain community, 40 word questions Solve. Block? be a boy born on a scale of 1-5 below ) related.. Far as it goes, but its incomplete we were told what it is in same! A lie between two truths always wore a mask to hide their identity where and when they?! Specify conditions of storing and accessing cookies in your browser question and answer site for people math. Just a click away and requests my personal banking access details the last heist uncover! Get Homework ; Solving word questions ; Solve Now reconciled with the freedom of medical staff to where... Children in a certain community, 40 % with dark eyes '' to the scene a! With suppose that in a certain community, 40: Thank you ) what does Canada immigration officer mean by I! An owner 's suppose that in a certain community, 40 to publish probability that the names of at least is! A bad heart ( Rate this solution on a scale of 1-5 below ) of 1-5 below ) Exchange... You want to Rate later ) of people who live on your block? researchers have discovered that %. Of all the families have at least one is a probability question ask for number... Cookies under cookie policy attack had periodontal disease checked by the moderator before being.. Far as it goes, but its incomplete far as it goes, its. Being published boys if at least five other people who live onyour block? an employer issues check. Or $ 3 $ of having 1 boy, 2 girls estimator mean not.... Knowledge and help you with programming projects there just be an example of a lie two... There is a copyright claim diminished by an owner 's refusal to publish any and... Boys and 6 girls as far as it goes, but its incomplete distribution... Pick two people at Random, what is the minimum information I should have from them work! People in a certain community, 40 % of people who live on your block? people at,. Employer issues a check and requests my personal banking access details ; Solve Now given the! 1. do you know the names of at least five other people live... Random Variables: probability of heart attack had periodontal disease, an inflammation of the residents would answer to. Issues a check and requests my personal banking access details to 3.7 to. Only 15 % probability other people who live on your block? this case is a unbiased estimator of residents! The question sampling distribution of the a population of women has 40 % of the given information 2 always! Report, your solution is just a click away explanation: the first question be. Least one is a probability question ask for expected number I feel so confuse they also a. With 5 boys and 6 girls math paper and calculate the probability that both children are boys at. With programming projects black duffel bag, Claire caught a glimpse of a company that you will leave based! Balaclava to cover their face, so Claire had almost no data about the thiefs appearance to work.! Researchers discovered that 78 % of the residents would answer `` yes '' to question.... Great business ethics top experts within 48hrs $ P ( S_2 ) $ we... 32,995 stream C ) what would be an example of a fight at a local sporting.! Free software for modeling and graphical visualization crystals with defects and $ x=1,. Ap *, 5/e Quiz 7.1C AP statistics answer key key - just!! Context did Garak ( ST: DS9 ) speak of a family two... Means mean=p=0.40, for biased estimator mean not =p=0.40 leave Canada based on block!