A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Age < 20 Number of Customers 56 20-30 50 30-40 91 40-50 76 50-60 96 > 60 52 One customer is chosen at random for a prize giveaway. What is the probability that the customer is at least 30 but no older than 50? What is the probability that the customer is either older than 60 or younger than 20? What is the probability that the customer is at least 50?
A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Age < 20 Number of Customers 56 20-30 50 30-40 91 40-50 76 50-60 96 > 60 52 One customer is chosen at random for a prize giveaway. What is the probability that the customer is at least 30 but no older than 50? What is the probability that the customer is either older than 60 or younger than 20? What is the probability that the customer is at least 50?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:A store gathers some demographic information from their
customers. The following chart summarizes the age-related
information they collected:
Age
Number of Customers
< 20
56
20-30
50
30-40
91
40-50
76
50-60
96
> 60
52
One customer is chosen at random for a prize giveaway.
What is the probability that the customer is at least 30 but
no older than 50?
What is the probability that the customer is either older
than 60 or younger than 20?
What is the probability that the customer is at least 50?
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