A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected: Number of Customers Age < 20 80 20-30 50 30-40 57 40-50 60 50-60 67 > 60 75 One customer is chosen at random for a prize giveaway. What is the probability that the customer is at least 20 but no older than 60? What is the probability that the customer is either older than 40 or younger than 20? What is the probability that the customer is at least 60? Enter your answers as either decimals or fractions, not as percents.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected:

| Age    | Number of Customers |
|--------|---------------------|
| < 20   | 80                  |
| 20-30  | 50                  |
| 30-40  | 57                  |
| 40-50  | 60                  |
| 50-60  | 67                  |
| ≥ 60   | 75                  |

One customer is chosen at random for a prize giveaway.

1. What is the probability that the customer is at least 20 but no older than 60?

   [Answer Box]

2. What is the probability that the customer is either older than 40 or younger than 20?

   [Answer Box]

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

   [Answer Box]

Enter your answers as either decimals or fractions, not as percents.
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 | 80 | | 20-30 | 50 | | 30-40 | 57 | | 40-50 | 60 | | 50-60 | 67 | | ≥ 60 | 75 | One customer is chosen at random for a prize giveaway. 1. What is the probability that the customer is at least 20 but no older than 60? [Answer Box] 2. What is the probability that the customer is either older than 40 or younger than 20? [Answer Box] 3. What is the probability that the customer is at least 60? [Answer Box] Enter your answers as either decimals or fractions, not as percents.
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