Answer Question 14 (1 point) sults Customers arrive at a Service Ontario centre with inter-arrival times averaging 5 minutes. The variance of the inter-arrival times is equal to 4 minutes square. What is the coefficient of variation for the inter-arrival times? (pick the choice that is closest to your answer). es er - Note: Variance is equal to the square of standard deviation. 1.2 ee all 0.2 0.8 on ote: nt) T... 0.4 a minutes. Question 15 (1 point) At a fashion retailer, there are usually multiple cashiers providing checkout service to customers simultaneously. They are paid at the hourly rate of $20