DISCRETE PROBABILITY DISTRIBUTIONActivity:Eight persons enter a supermarket. From past experience, it is known that 25% of the people entering the supermarketmake a purchase.Let X be the number of customers who will make a purchase.1. What are the possible values of the random variable X?2. Construct the probability distribution of X.P(X=x)3. What is the probability thata) at least four persons will make a purchase?b) two or three persons will make a purchase?c) at most two persons will make a purchase?4. Out of the eight persons entering a supermarket, how many are expected to make a purchase?5. Compute the standard deviation of the random variable X.

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Description: DISCRETE PROBABILITY DISTRIBUTIONActivity:Eight persons enter a supermarket. From past experience, it is known that 25% of the people entering the supermarketmake a purchase.Let X be the number of customers who will make a purchase.1. What are the p

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Eight persons enter a supermarket. From past experience, it is known that 25% of the people entering the supermarket make a purchase. Let X be the number of customers who will make a purchase. 1. What are the possible values of the random variable X? 2. Construct the probability distribution of X. P(Xwx) 3. What is the probability that a) at least four persons will make a purchase? b) two or three persons will make a purchase? c) at most two persons will make a purchase?

Eight persons enter a supermarket. From past experience, it is known that 25% of the people entering the supermarket make a purchase. Let X be the number of customers who will make a purchase. 1. What are the possible values of the random variable X? 2. Construct the probability distribution of X. P(Xwx) 3. What is the probability that a) at least four persons will make a purchase? b) two or three persons will make a purchase? c) at most two persons will make a purchase?

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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