While playing around of golf, tiana had a score of three under part after three holes. write and solve an equation to find tiana's average score per hole h after three

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?