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According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%. Answer the following a round each answer to three decimal places. a. If 9 republicans are selected, find the probability that exactly 7 approve of the death penalty. b. If 9 republicans are selected, find the probability that at least 5 approve of the death penalty.

According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%. Answer the following a round each answer to three decimal places. a. If 9 republicans are selected, find the probability that exactly 7 approve of the death penalty. b. If 9 republicans are selected, find the probability that at least 5 approve of the death penalty.

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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According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%. Answer the following a round each answer to three decimal places. a. If 9 republicans are selected, find the probability that exactly 7 approve of the death penalty. b. If 9 republicans are selected, find the probability that at least 5 approve of the death penalty. c. If 390 Republicans are randomly selected, find the mean number that approve of the death penalty d. Find the standard deviation of the binomial distribution created in part C.
Transcribed Image Text:According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%. Answer the following a round each answer to three decimal places. a. If 9 republicans are selected, find the probability that exactly 7 approve of the death penalty. b. If 9 republicans are selected, find the probability that at least 5 approve of the death penalty. c. If 390 Republicans are randomly selected, find the mean number that approve of the death penalty d. Find the standard deviation of the binomial distribution created in part C.
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