Suppose that 36% of all voters prefer the Democratic candidate. Let X be the number of people who preferthe candidate when 15 people are surveyed at random.a. What is the distribution of X? X? vPlease show the following answers to 4 decimal places.b. What is the probability that exactly 7 voters who prefer the Democratic candidate in the survey?0.1419c. What is the probability that less than 7 voters who prefer the Democratic candidate in the survey?d. What is the probability that at least 7 voters who prefer the Democratic candidate in the survey?e. What is the probability that between 5 and 8 (including 5 and 8) voters who prefer the Democraticcandidate in the survey?

Answered: Suppose that 36% of all voters prefer…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a study, it was found that 42.5% of the population drink soda at least once a day. You randomly select 8 people. Let X be the number of people in the sample that drink soda at least once a day.Then X has what distribution?
5. A multiple-choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (10 points) a. What is the probability that the student answers more than 20 questions correctly? b. What is the probability the student answers less than 5 questions correctly?
4.c
Suppose 22% of students at a certain university are out of state students. A professor takes a random sample of 50 students. Let X = the number of out of state students in the sample. a. how many students are expected to be out of state? by how much does this vary? b. what is the probability that 10 will be out of state? c. what is the probability that 10 or fewer will be out of state? d. what is the probability that fewer than 10 will be out of state?
3) Below is the distribution of 80 graduates with their degree type and average grade. Find the probability that a randomly selected graduate has a B.S. degree, given that the graduate has a B average. ((please check images for accuracy, thank you!!!))
1. Suppose 1495 Valencia College students were selected at random from the entire student body and given an experimental H1N1 flu shot. All 1495 were exposed to the flu, but only 332 of them actually ended up sick with the flu. Let p represent the probability that the flu shot will be successful. (Read this carefully!) A. Find the point estimate for the population proportion from this study. Show your simplified fraction for the point estimate. Use proper notation. B. Build a 98% confidence interval for the real population proportion by hand using the formula. Draw a picture that represents the problem and clearly indicate your final answer C. Use a complete sentence or two to interpret your confidence interval.
According to a health publication, 16.5% of persons under the age of 65 have no health insurance coverage. Suppose that four persons under the age of 65 are randomly selected. a. Determine the probability distribution for the number, X, who have no health insurance coverage. b. Determine and interpret the mean of X.
A poll is given, showing 51% are in favor of a new building project. Let X be the number of people who favor the new building project when 28 people are chosen at random. a. What is the distribution of X? X - ? ✓ Please show the following answers to 4 decimal places. b. What is the probability that exactly 11 people out of 28 favor the new building project? c. What is the probability that at least 11 people out of 28 favor the new building project? d. What is the probability that more than 11 people out of 28 favor the new building project? e. What is the probability that between 7 and 16 (including 7 and 16) people out 28 favor the new building project?
Please do this typewritten only. I will upvote. Thank you. USE HYPERGEOMETRIC PROBABILITY DISTRIBUTION.
Select the correct choice below and fill in the answer boxes to complete your choice (Type integers or decimals. Do not round.) A. One can be % confident that the mean drive-through service time of Taco Bell is between seconds and seconds. B. The mean drive-through service time of Taco Bell is of the time. OC. There is a seconds OD. One can be Taco Bell is % % probability that the mean drive-through service time of Taco Bell is between seconds and seconds % confident that the mean drive-through service time of seconds
If a seed is planted, it has a 69% chance of growing into a healthy plant. Let X be the number of seeds grow into healthy plants when 68 seeds are planted. a. What is the distribution of X? X? ♥ Please show the following answers to 4 decimal places. b. What is the probability that exactly 40 seeds grow into healthy plants? c. What is the probability that at most 40 seeds grow into healthy plants? d. What is the probability that at least 40 seeds grow into healthy plants? e. What is the probability that between 17 and 44 (including 17 and 44) seeds grow into healthy plants?
10.2.% of the population is 65 or older . Find the probability that the following number of persons selected at random from 50 people are 65or older . The probability that at most 2 are 65 or older is ?

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