A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age << 20 20-29 30-39 40-49 50-59 >60 Number of Customers 77 63 99 74 81 89 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 40 but no older than 59? b. What is the probability that the customer is either older than 39 or younger than 20? c. What is the probability that the customer is at least 50?
A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age << 20 20-29 30-39 40-49 50-59 >60 Number of Customers 77 63 99 74 81 89 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 40 but no older than 59? b. What is the probability that the customer is either older than 39 or younger than 20? c. What is the probability that the customer is at least 50?
Chapter8: Sequences, Series,and Probability
Section: Chapter Questions
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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
< 20
20-29
30-39
40-49
50-59
> 60
Number of Customers
77
63
99
74
81
89
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 40 but no older than 59?
b. What is the probability that the customer is either older than 39 or younger than 20?
c. What is the probability that the customer is at least 50?
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