Question

The times taken by a phone operator to complete a call are 9, 2, 3, 1, 5 minutes respectively. What is the average time per call?

• A. 4 minutes
• B. 7 minutes
• C. 1 minute
• D. 5 minutes
• E.

Hint:

To find the average, simply add all the times and divide by the number of events (in this case, calls).

Answer 1

The Correct Option is A

The durations of the calls are given as: 9, 2, 3, 1, and 5 minutes. 

Step 1: Compute the total time spent on all calls: \[ 9 + 2 + 3 + 1 + 5 = 20 \text{ minutes} \] 

Step 2: Determine the number of calls: \[ \text{Total calls} = 5 \] 

Step 3: Calculate the average time per call: \[ \frac{20}{5} = 4 \text{ minutes} \] Thus, the average duration of a call is 4 minutes.