It is known that 19% of people ride public transport without paying for it. We talk to 82 people who have been on public transport in the last month. What is the probability that the sample proportion is more than 22%?

Q: Given that a random person just tested positive, determine the probability of having this illness.

A: Here use tree diagram

Q: Catherine Chao, director of marketing research, needs a sample of Kansas city households to…

A:

Q: What is the probability of picking one person who is 30 years and above given that he reads non…

A:

Q: GreenFacts, a non-profit organization,reports that the average adult in Europe consumed 17 litres of…

A:

Q: About 13% of the population is left-handed. If two people are randomly selected, What is the…

A:

Q: what is the probability that at least 1 defective card is in the sample?

A: Let , X has hypergeometric distribution with parameter N=120 , M=15 and n=15 The probability mass…

Q: If you are interested in the probability of two successes out of five trials, what is the correct…

A: Given  Let p be the probability p=0.30,  n=5. X~Bin(n=5,p=0.30) P(X=2)=?

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A: Given that, 40% of adult Australian sheep dogs weigh 65 pounds or more. Sample size = 18

Q: What is the probability that a student chosen at random skips breakfast, given they are between the…

A: The formula for conditional probability is,  P(A | B) = P( A n B) / P(B)

Q: It is estimated that 1 in 59 students in Canada have been diagnose Austism Spectrum Disorder. In a…

A: It is given that, 1 in 59 students in Canada has been diagnosed with Autism Spectrum Disorder.  i.e.…

Q: What is the probability of grade 10 students joining basketball? *

A: Here use given venn diagram  Basketball = B Volleyball = A

Q: Given that a random student plays music, what is the probability that the student does not play…

A: It is given that the number of students play music is 18+5 = 23.

Q: What is the probability of selecting a sample with the proportion of females being 0.56 or greater?

A: here p =  proportion of female in US =  0.51  n = 500

Q: What is the probability that out of 12 students on a swim team, they will line up from youngest to…

A:

Q: It is known that 20% of people ride public transport without paying for it. We talk to 68 people who…

A: From the provided information, 20% of people ride public transport without paying for it that is…

Q: When one is randomly sampling four items from a population, what is the probability that all four…

A: (a). Compute the probability that all four elements will come from the top quartile of the…

Q: What is the probability that the sample proportion exceeds 0.12?

A: Given According to a 2009 Reader's Digest article. First, we need to find the standard deviation for…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Solution: It is given that people throw away about 14% of what they buy at the grocery store. So,…

Q: What is the probability of having no errors on a page?

A: Poisson distribution is a discrete probability distribution . It is the most widely used .

Q: According to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A: Given that, n=155,p=0.12 The Mean and Standard error of the sampling distribution of sampling…

Q: What is the probability that the sample proportion exceeds 0.12?

A: Let p be the proportion of throw away of what people buy at the grocery state. Given that p=13% =…

Q: A film distribution manager calculates that 7 % of the films released are flops. If the manager is…

A: Where.

Q: A medication states that the odds of having an allergic reaction are 1 in 50. What is that…

A: Given that, A medication states that the odds of having an allergic reaction are 1 in 50. Therefore,…

Q: The centers for disease control reported that 16% of college aged individuals used vapes in…

A: Given information Probability of using vapes = 0.16 No of individuals n = 750 Probability that less…

Q: A medication states that the odds of having an allergic reaction are 1 in 50. What is that…

A: Given, odds of having an allergic reaction are 1 in 50. Therefore, The probability of having…

Q: Suppose a large shipment of microwave ovens contained 14 % defectives. If a sample of size 278 is…

A:

Q: When drawing a single card from the deck, what is the probability of getting a face card or a…

A: A deck contains 52 cards in total, and it contains following: 1.   Twelve Face cards (Jack, Queen,…

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A: We have given that  Sample size n= 153 , p=13%=0.13

Q: Should the one-tailed or the two-tailed probability be used to assess performance  of the students?

A: The tail of the test depends on the alternative hypothesis of the test. The possible alternative…

Q: About 35% of Americans will admit that they waste time regularly at work. A poll of 100 Americans is…

A: The provided information are: Population proportion (p) = 35% = 0.35 Number of Americans that are…

Q: In the experiment of rolling two dice, what is the probability that the difference between the…

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Q: What is the probability that the average attendance at the games in a sample of 50 will be above…

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Q: According to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A: Let X be the proportion of things throw away that people bought at the store. The population…

Q: What is the probability that a student chosen at random is between the ages 10 and 13 and skips…

A:

Q: According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the…

A: Given information : Population proportion = p= 10% = 0.10 q = 1 - p    = 1 - 0.10 = 0.90 Sample size…

Q: According to a 2009 Reader's Digest article, people throw away about 11% of what they buy at the…

A: From the provided information, Mean (p) = 0.11 Sample size (n) = 90 The standard deviation can be…

Q: What is the probability the pedestrian was not intoxicated

A: Given data The table summarizes results from 990 pedestrian deaths   Driver  intoxicated?…

Q: A medication  statest that the  odds of having an allergic  reaction are 1 in 50.  What is that…

A: Given that the odds of having an allergic  reaction are 1 in 50  So the probability is = 1/50 = 0.02…

Q: If the population proportion is 0.90 and a sample of size 64 is taken, what is the probability that…

A:

Q: An unbiased fair coin was tossed 15 times. What is the probability of getting exactly 8 heads?

A: We have given the following statement coin tossed 15 times.  We have to find probability of getting…

Q: According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the…

A: Given that,  n=93, p= 0.10 The mean and standard error of the sampling distribution of sampling…

Q: According to a study done by the Seattle City Council, 65% of Seattle adults own a car. Assume this…

A: The population proportion is p=0.65 The required probability is…

Q: What is the probability of randomly selecting a female respondent from the sample?

A: Given contingency table is:   Probability = number of favorable events/ Total number of events in…

Q: If the rework percentage increases to 4%, what is the probability that all 20 samples do not require…

A: 1. Let , X be the number of parts in the sample that does not require rework. Here , X→B(n=0.01 ,…

Q: What is the probability of experiencing only nausea?

A: There is a 15% chance of experiencing nausea (N). That is, PN=0.15, 48% chance of experiencing…

Q: What is the probability that a randomly chosen survey respondent is a male or chose "recreation" as…

A: There are totally 200 people are considered in which 96 are males, 62 are recreations, and 23 are…

Q: According to government data, the probability that an adult was never in a museum is 15%. In a…

A: It is given that n = 10 and p = 0.15.