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A local bookseller carefully collectsdata on the customers that enter her store. She uses the term“unit” to describe either a customer that comes in alone ora group of customers that come in together. Based on pastexperience, she estimates that 8% of the units who enter herstore will make some type of purchase. It appears that theunits are independent.In one hour, ten units enter her store. What is theprobability that at least one of them makes a purchase?A) 0.038 B) 0.378 C) 0.434D) 0.566 E) 0.812

A local bookseller carefully collectsdata on the customers that enter her store. She uses the term“unit” to describe either a customer that comes in alone ora group of customers that come in together. Based on pastexperience, she estimates that 8% of the units who enter herstore will make some type of purchase. It appears that theunits are independent.In one hour, ten units enter her store. What is theprobability that at least one of them makes a purchase?A) 0.038 B) 0.378 C) 0.434D) 0.566 E) 0.812

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A local bookseller carefully collects
data on the customers that enter her store. She uses the term
“unit” to describe either a customer that comes in alone or
a group of customers that come in together. Based on past
experience, she estimates that 8% of the units who enter her
store will make some type of purchase. It appears that the
units are independent.In one hour, ten units enter her store. What is the
probability that at least one of them makes a purchase?
A) 0.038 B) 0.378 C) 0.434
D) 0.566 E) 0.812

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