6. Suppose that 25% of all subscribers to a business magazine earn an income of more than$75,000. The magazine polls 20 subscribers at random to determine how much they make,a) What is the probability that none of the subscribers make more than $75,000?b) What is the probability that exactly half of the subscribers make less than $75,000?c) Find the variance of the number of people in this sample who earn more than $75,000.

Given that n=20 , p=25%=0.25 , q=1-p=1-0.25=0.75 p=Probability of income more than $75000…

Answered: 6. Suppose that 25% of all subscribers…

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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