For a customer, the number of books he buys in a bookstore can be treated as a random variable. The probability of not buying any book, buying one book and buying 2 books are 0.05,0.8 and 0.15 for each customer. Suggest there are 400 customers who come to this bookstore today and the number of books purchased by each customer are a sequence of iid random variables. (a) Find the probability that the bookstore could sell more than 450 books (the sum of all customers buying) today.(Hint: use central limit theorem)

For a customer, the number of books he buys in a bookstore can be treated as a random variable. The probability of not buying any book, buying one book and buying 2 books are 0.05,0.8 and 0.15 for each customer. Suggest there are 400 customers who come to this bookstore today and the number of books purchased by each customer are a sequence of iid random variables. (a) Find the probability that the bookstore could sell more than 450 books (the sum of all customers buying) today.(Hint: use central limit theorem)

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Description: For a customer, the number of books he buys in a bookstore can be treated as a random variable. Theprobability of not buying any book, buying one book and buying 2 books are 0.05,0.8 and 0.15 for eachcustomer. Suggest there are 400 customers who com

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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