Rico bicycles at an average speed of 15.5 miles per hour. What distance will Rico bicycle in 4.5 hours? Rico will bicycle miles in 4.5 hours.

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?