Suppose you want to find out how many people support Policy X. A standard polling approach is to just ask N many people whether or not they support Policy X, and take the fraction of people who say yes as an estimate of the probability that any one person supports the policy. Suppose that the probability someone supports the policy is p, which A you do not know. Let p„ be the number of people polled who supported the policy, N divided by the total number of people polled N.
Suppose you want to find out how many people support Policy X. A standard polling approach is to just ask N many people whether or not they support Policy X, and take the fraction of people who say yes as an estimate of the probability that any one person supports the policy. Suppose that the probability someone supports the policy is p, which A you do not know. Let p„ be the number of people polled who supported the policy, N divided by the total number of people polled N.
A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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![Suppose you want to find out how many people support Policy X. A standard polling
approach is to just ask N many people whether or not they support Policy X, and take the
fraction of people who say yes as an estimate of the probability that any one person
supports the policy. Suppose that the probability someone supports the policy is p, which
you do not know. Let p„ be the number of people polled who supported the policy,
divided by the total number of people polled N.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2fbff82e-583d-4003-b329-07736a7bbd92%2F77821275-dab4-4288-94b1-2136e3ae082d%2F19xu0z_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Suppose you want to find out how many people support Policy X. A standard polling
approach is to just ask N many people whether or not they support Policy X, and take the
fraction of people who say yes as an estimate of the probability that any one person
supports the policy. Suppose that the probability someone supports the policy is p, which
you do not know. Let p„ be the number of people polled who supported the policy,
divided by the total number of people polled N.
![A) What is the distribution of N * p,
N
B) Show that the expected value of p, is p](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2fbff82e-583d-4003-b329-07736a7bbd92%2F77821275-dab4-4288-94b1-2136e3ae082d%2F18gpjel_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A) What is the distribution of N * p,
N
B) Show that the expected value of p, is p
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