# store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected:AgeNumber of Customers<20<209720-306430-405540-509150-6088≥60≥6093One customer is chosen at random for a prize giveaway.What is the probability that the customer is at least 20 but no older than 50?    What is the probability that the customer is either older than 50 or younger than 20?    What is the probability that the customer is at least 50?    Enter your answers as either decimals or fractions, not as percents.

Question

store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected:

Age Number of Customers
<20<20 97
20-30 64
30-40 55
40-50 91
50-60 88
≥60≥60 93

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 50?

What is the probability that the customer is either older than 50 or younger than 20?

What is the probability that the customer is at least 50?

check_circle

Step 1

The probability that the customer is at least 20 but no older than 50 is 0.4303 and it is obtained below:

The age class classes for at least 20 but no older than 50 are 20-30, 30-40 and 40-50.

Step 2

The probability that the customer is either older than 50 or younger than 20 is 0.5697 and it is calculated below:

The age class c...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in