For parts (a) and (b) below, choose the correct description.

Question

Fill in the blanks as necessary.

(a) A local store is keeping track of service times. The table below shows the number of customers served and the time it took.
Number of customers
Time (in minutes)

It does not always take the same amount of time to serve each customer.

It appears to take the same amount of time to serve each customer.
Predicted number of customers served in 30 minutes:

(b) Customers of a certain credit card earn points for using the card. The table below shows the number of points earned for the amount spent.
Number of points
Dollars spent

Each dollar spent does not always earn the same number of points.

Each dollar spent appears to earn the same number of points.
Predicted number of points for spending 10:

Answer 1

To fill in the blanks for parts (a) and (b), we must rely on the information provided while considering the context of each scenario.

(a) In the context of service times at a local store, if the times to serve customers vary significantly, the correct choice would be:

• It does not always take the same amount of time to serve each customer.

Predicted number of customers served in 30 minutes: (This will depend on the data you may have, such as average service times. For example, if on average each customer takes 10 minutes, the predicted number would be 3 customers in 30 minutes.)

(b) For the credit card points earned based on the amount spent, if the points earned for spending dollars are consistent, the choice would be:

• Each dollar spent appears to earn the same number of points.

Predicted number of points for spending 10: (Again, the actual points would depend on the point system. For example, if customers earn 1 point per dollar, then spending 10 would yield 10 points.)

Please replace the predictive numbers with actual calculations based on the data tables if they're available to you.