The Zookeeper weighed a baby rhino and her mother. The baby weighed 1,500 pounds and the
mother weighed 2 tons. How many more pounds
did the mother rhino weigh than her baby?
A 1,4986 lb
B 500 lb
C 2,500 lb
D 3,500 lb

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?