On an architect's plan for a house, the scale reads 1/2in. =5 ft. how long actual length of a room that's 2 in. long on the is the drawing?

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?