In queuing problems, arrival rates are generally described by the normal probability distribution

It is ________ to look a lot like Christmas

A) begging B) beginning C) beggining D) begining

Paid vacations have undergone a steady liberalization as a worker benefit. As a result

a. 4-week vacations, usually after at least 15-years' service, are included in 90 percent of all agreements. b. 95 percent of contracts, usually requiring 6–9 years' service, permit a 3-week paid vacation. c. after 5 years of service almost all workers under contract receive a 2-week vacation. d. All of the above.