Suppose that 64% of all voters prefer the Democratic candidate. Let X be the number of people who preferthe candidate when 37 people are surveyed at random.a. What is the distribution of X? X - BPlease show the following answers to 4 decimal places.b. What is the probability that exactly 13 voters who prefer the Democratic candidate in the survey?37c. What is the probability that at most 13 voters who prefer the Democratic candidate in the survey?d. What is the probability that less than 13 voters who prefer the Democratic candidate in the survey?e. What is the probability that between 9 and 28 (including 9 and 28) voters who prefer the Democraticcandidate in the survey?

p=0.64n=37we have to find out the distribution of x and probability for the given data.

Answered: Suppose that 64% 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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83. The maternity ward at Dr. Jose Fabella Memorial Hospital in Manila in the Philippines is one of the busiest in the world with an average of 60 births per day. Let X = the number of births in an hour. a. Find the mean and standard deviation of X. b. Sketch a graph of the probability distribution of X. c. What is the probability that the maternity ward will deliver three babies in one hour? d. What is the probability that the maternity ward will deliver at most three babies in one hour? e. What is the probability that the maternity ward will deliver more than five babies in one hour?
A population consists of the four numbers: 2, 3, 6, and 9. You have to consider all possible samples of size 2 that can be drawn from this population. Find the following: List all of the possible sample of size of 2. Compute the mean of each sample Identify the probability of each sample Illustrate the histogram
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below. E Click the icon to view the table, a. Find the probability of getting exactly 1 girl in 8 births. (Type an integer or a decimal. Do not round.) Probability distribution for x b. Find the probability of getting 1 or fewer girls in 8 births. Number of Girls x (Type an integer or a decimal. Do not round.) P(x) 0.002 0.019 0.119 c. Which probability is relevant for determining whether 1 is a significantly low number of girls in 8 births: the result from part (a) or part (b)? 1 O A. Since the probability of getting more than 1 girl is the complement of the result from part (b), this is the relevant probability. 3 0.189 O B. Since the probability of getting 1 girl is the result from part (a), this is the relevant probability. 0.342 5 0.189 OC. Since the probability of getting 0 girls is…
Suppose a random sample of 968 athletes from the college are asked what their major is. The table below shows the results of the survey. Observed Frequencies of Majors from the Sample Observed Frequency Outcome Math/Science 225 Arts & Humanities 247 Business & Economics 251 Other 245 The distribution of majors at the college is shown in the second column of the table below. Fill in the expected frequencies. (Round to the nearest whole number). Frequencies of Majors at the College Expected Percent Outcome Expected Frequency Math/Science 20 Arts & 25 Humanities Business & 25 Economics Other 30
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Suppose that 36% of all voters prefer the Democratic candidate. Let X be the number of people who prefer the candidate when 15 people are surveyed at random. a. What is the distribution of X? X ? v Please 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? 0.1419 c. 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 Democratic candidate in the survey?
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