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The number of newspapers sold daily at a kiosk is normally distributed with a mean of 350 and a standard deviation of 50. Assume independence of sales cross days. i. Find the probability that more newspapers are sold on Wednesday than on Thursday. A i. How many newspapers should the newsagent stock each day such that the probability of running out on any particular day is 5%?

The number of newspapers sold daily at a kiosk is normally distributed with a mean of 350 and a standard deviation of 50. Assume independence of sales cross days. i. Find the probability that more newspapers are sold on Wednesday than on Thursday. A i. How many newspapers should the newsagent stock each day such that the probability of running out on any particular day is 5%?

A First Course in Probability (10th Edition)
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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Suppose X~ Bin(n, π), i.e. X has a binomial distribution. Explain how, and under what conditions, X could be approximated by a normal distribution. Also, justify whether a continuity correction is required.
Transcribed Image Text:Suppose X~ Bin(n, π), i.e. X has a binomial distribution. Explain how, and under what conditions, X could be approximated by a normal distribution. Also, justify whether a continuity correction is required.
The number of newspapers sold daily at a kiosk is normally distributed with a mean of 350 and a standard deviation of 50. Assume independence of sales across days. i. Find the probability that more newspapers are sold on Wednesday than on Thursday. A ii. How many newspapers should the newsagent stock each day such that the probability of running out on any particular day is 5%?
Transcribed Image Text:The number of newspapers sold daily at a kiosk is normally distributed with a mean of 350 and a standard deviation of 50. Assume independence of sales across days. i. Find the probability that more newspapers are sold on Wednesday than on Thursday. A ii. How many newspapers should the newsagent stock each day such that the probability of running out on any particular day is 5%?
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