During schedule and cost control, when comparing performance to the schedule and cost baselines, if schedule or budget has changed these changes should be: a. implemented immediately and reported as variances from baseline in the next status report b. added to the original baselines, and baseline changes made to reflect the new status c. reviewed with the customer or sponsor to obtain approval for additional funding d. formally recommended and managed through the integrated change control system

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