11) Jose's family put $400 in a guaranteed stock fund earning 14% interest per year. How long will it take for Jose's account to grow to $2000?

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?