Question

The average time to serve a customer at a fast-food restaurant is 4.35 minutes. The standard deviation of the service time is 2.5 minutes. What is the coefficient of variation of the service time

Answer 1

Answer: 0.5747

Explanation:

Given: Average time to serve a customer
`(\mu)=4.35` minutes

standard deviation of the service time
`(\sigma)=` 2.5 minutes

coefficient of variation =
`(\sigma)/(\mu)`

`=(2.5)/(4.35)\\\\=(250)/(435)\\\\=0.5747`

Hence, the required coefficient of variation= 0.5747