MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question

A manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information that was collected:

Age Number of Customers
<20<20 88
20-29 75
30-39 76
40-49 51
50-59 79
≥60≥60 67



One customer is chosen at random for a prize giveaway. Please enter reduced fractions

What is the probability that the customer is at least 40 but no older than 60?   

What is the probability that the customer is either older than 60 or younger than 40?   

What is the probability that the customer is at least 60?

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