Ms. Thompson is baking bread. The recipe calls for 6.5 cups of flour. She has already put in 2 cups. How many more cups does she need to put in?

Is the square root of 4 plus the square root of 16 rational?

Standard deviation of 19,29,21,22,23

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?