Atrain leaves a station at 10: 42 a. m. and arrives at its destination at 1: 22 p. m. find the distance between the stations if the average speed of the train was 60 mph.

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?