Thats 3.85714285714 because if you add the numbers and divide by the numbers they are it’ll be 3.85714285714
nice.......................
Answer: option d.
Step-by-step explanation:
You have the following formul given in the problem:

You know that:
The number of customers serviced in an hour by the technical support representative is 6 costumbers, therefore:

As the problem asked for the probability that a costumber will be on hold less than 30 minutes, we know that:

Substitute the values above into the formula.
Then, you obtain:
or 95%
<span>.2 times 60 equals your answer</span>