a. What is the probability that the customer is at least 30 but no older than 49? b. What is the probability that the customer is either older than 60 or younger than 20? c. What is the probability that the customer is at least 60?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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A store manager gathers some demographic information
from the store's customers. The following chart
summarizes the age-related information they
collected:
Age
Number of Customers
< 20
67
20-29
80
30-39
93
40-49
56
50-59
99
> 60
92
One customer is chosen at random for a prize giveaway.
(Round answers to 4 decimal places.)
a. What is the probability that the customer is at least
30 but no older than 49?
b. What is the probability that the customer is either
older than 60 or younger than 20?
c. What is the probability that the customer is at least
60?
Transcribed Image Text:A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age Number of Customers < 20 67 20-29 80 30-39 93 40-49 56 50-59 99 > 60 92 One customer is chosen at random for a prize giveaway. (Round answers to 4 decimal places.) a. What is the probability that the customer is at least 30 but no older than 49? b. What is the probability that the customer is either older than 60 or younger than 20? c. What is the probability that the customer is at least 60?
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