Online Teleshopping appliances sells 10 dishwashers each week. Twenty percent of all purchasers of dishwashers buy an
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Question:
Online Teleshopping appliances sells 10 dishwashers each week. Twenty percent of all purchasers of dishwashers buy an extended warranty. Let the random variable X denote the number of the next 10 purchasers in a week who buy extended warranty.
a Identify the distribution of the random variable X
b Find mean and standard of purchases.
c Find the probability that no one takes warranty.
d Find the probabilities that two, three, four purchasers tale the warranty
Related Book For
Statistics For Business Decision Making And Analysis
ISBN: 9780321890269
2nd Edition
Authors: Robert Stine, Dean Foster
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