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How can I solved Question d and e?

How can I solved Question d and e?

MATLAB: An Introduction with Applications
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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How can I solved Question d and e?
Suppose that 65% of all voters prefer the Democratic candidate. Let X be the number of people who prefer the candidate when 12 people are surveyed at random. a. What is the distribution of X? X - N Please show the following answers to 4 decimal places. b. What is the probability that exactly 6 voters who prefer the Democratic candidate in the survey? c. What is the probability that more than 6 voters who prefer the Democratic candidate in the survey? d. What is the probability that at most 6 voters who prefer the Democratic candidate in the survey? e. What is the probability that between 4 and 9 (including 4 and 9) voters who prefer the Democratic candidate in the survey?
Transcribed Image Text:Suppose that 65% of all voters prefer the Democratic candidate. Let X be the number of people who prefer the candidate when 12 people are surveyed at random. a. What is the distribution of X? X - N Please show the following answers to 4 decimal places. b. What is the probability that exactly 6 voters who prefer the Democratic candidate in the survey? c. What is the probability that more than 6 voters who prefer the Democratic candidate in the survey? d. What is the probability that at most 6 voters who prefer the Democratic candidate in the survey? e. What is the probability that between 4 and 9 (including 4 and 9) voters who prefer the Democratic candidate in the survey?
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