Suppose that 54% of people own dogs. If you pick two people at random, what is the that they both own a dog? Give your answer as a decimal (to at least 3 places) or fraction

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: When taking a 29 question multiple choice test, where each question has five possible answers, it…

A: Solution 10 or More questions are unusual

Q: find the mean for the number of correct answers

A: A multiple choice test with 17 questions, each question has four possible answers, one of which is…

Q: What score is expected?

A: Here use binomial distribution

Q: Suppose that 43% of people own dogs. If you pick two people at random, what is the both own a dog?…

A: Given, Probabily of a person own a dog is 43 %

Q: According to the results of a survey,  32%  of  102  people indicated that American football is…

A: Consider the level of significance as 0.05. Computation of critical value:…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: Suppose that the results of a survey show that 59% of people consider summer as their favorite…

A: Given information: The proportion of people consider summer as their favorite season is 59%. The…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: The median age of five people in a meeting is 40 years. One of the people who leaves the room are 60…

A: The median age of five people in a meeting is 40 years.

Q: what are the odds against the paper for having the letter M written on it State your answer as a…

A: HERE from given information  All 11 letters from the word Mississippi are written on individual…

Q: Suppose a certain virus (sorry!) affects 0.3% of the population. A test used to detect the virus is…

A: 0.3% of 100000 population have virus.  0.3*100000/100= 300  people have virus.  88% have virus and…

Q: When taking a 32 question multiple choice test, where each question has five possible answers, it…

A: According to range rule of thumb observation above 2 standard deviation of mean and observation…

Q: 31 of 48% is what?

A: 31 of 48%

Q: Suppose a questionnaire has 11 questions. In how many ways can the questionnaire be answered if each…

A: A questionnaire has  questions. Each question requires a yes or no response followed by a -part…

Q: If the mean of five values is 8.6 and four of the values are 8, 6, 10, and 7, find the fifth value.…

A: Solution

Q: cently a community college offered a 2-credit course to help students with math anxiety. At the…

A: Calculate the following values: Before(x) After(y) x2 y2 x*y 72 69 5184 4761 4968 66 52 4356…

Q: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

Q: Suppose that the results of a survey show that  24%  of people consider summer as their favorite…

A: Solution: From the given information, p=0.24 and E=0.02.

Q: Julia sets up a passcode on her tablet, which allows only eight-digit codes. A spy sneaksa look at…

A: According to the provided data, the passcode allows only eight digit codes. As the fingerprints on…

Q: When taking a 28 question multiple choice test, where each question has five possible answers, it…

A: Given that, When taking a 28 question multiple choice test, where each question has five possible…

Q: on a multiple choice test with 20 questions, each question has 4 possible answers, one of which is…

A: We have to find mean  for students who guess at all  correct answers..

Q: A survey found that 58% of American adults said they use the Internet. If 20 American adults are…

A: Answer - A survey found that 58%   i.e P = 0.58               n= 20,    x = 12

Q: The proportion of commuters on PSU – Berks campus is purported to be 65%. A professor believes this…

A: Given P0=65% = 0.65 Let X = Number of commuters on PSU  X = 200 n = 300

Q: if the mean of five values is 8.8 and four of the values are 7, 13, 6, and 9 find the fifth value.

A: given data , mean of the five values =8.8n=5x¯=8.8we have to find out the 5th observation for the…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.