1. E[N] 2. Var(N) Hint: first express N as a summation of n random variables then use the linearity of expectation and the formula for variance of sum of random variables.
1. E[N] 2. Var(N) Hint: first express N as a summation of n random variables then use the linearity of expectation and the formula for variance of sum of random variables.
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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Suppose n people throw their hats into a box, and each then picks one at random (without replacement and all outcomes are equally likely). Let N denotes the number of people who obtain their own hat. Determine the following:
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