The first step in project cost management is: a. to allocate project cost estimates to individual material resources. b. to plan how costs will be managed. c. to develop several estimates of costs for different types of resources. d. to control project costs and monitor cost performance.

Customers arrive at rich dunn's styling shop at a rate of 3 per hour, distributed in a poisson fashion. rich can perform an average of 5 haircuts per hour, according to a negative exponential distribution.a) the average number of customers waiting for haircuts= customersb) the average number of customers in the shop= customersc) the average time a customer waits until it is his or her turn= minutesd) the average time a customer spends in the shop= minutese) the percentage of time that rich is busy= percent