Thirty-five percent of people who own cell phones use their phones to send and receive text message. Choose 4 cell phones owners at random. What is the probabi

Question

Multipulcation Rules and cconditional probability.

 

Thirty-five percent of people who own cell phones use their phones to send and receive text message. Choose 4 cell phones owners at random. What is the probability that none use their phone for texting?

 

The answer is 0.179 how is this problem set up.

Answer 1

65% don't use their phones to send and receive text message.

The probability that none of the four use their phone for texting is .65^4