Question 42, A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the US. Suppose a sample of 20 Amserican is selected as part of the study of the state of the nation. Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States Compute the probability that at leeast 2 of the Americans surveyed are satisfied with the way things are going in US. Fro the sample of 20 Americans compute the expected number of Americans who are satisfied with the way things are going in US. For the sample of 20 Americans, compute the variance and standard deviation of the number of Americans who are satisfied with the way things are going in the US.

Question 42, A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the US. Suppose a sample of 20 Amserican is selected as part of the study of the state of the nation. Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States Compute the probability that at leeast 2 of the Americans surveyed are satisfied with the way things are going in US. Fro the sample of 20 Americans compute the expected number of Americans who are satisfied with the way things are going in US. For the sample of 20 Americans, compute the variance and standard deviation of the number of Americans who are satisfied with the way things are going in the US.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Please help with question 11 with explanation Thank you
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Question 42, A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the US. Suppose a sample of 20 Amserican is selected as part of the study of the state of the nation.

Compute the probability that exactly 4 of the 20 Americans surveyed are satisfied with the way things are going in the United States




Compute the probability that at leeast 2 of the Americans surveyed are satisfied with the way things are going in US.


Fro the sample of 20 Americans compute the expected number of Americans who are satisfied with the way things are going in US.


For the sample of 20 Americans, compute the variance and standard deviation of the number of Americans who are satisfied with the way things are going in the US.