Question

Your friend is supposed to call you between 3 pm and 4 pm at 3:20 pm you realize that your cell phone is off and you immediately turn it on what is the probability that you missed your friends call

Answer 1

1/3

Explanation:

20/60 = 1/3

60 mins in the hour;

20 missed;

20/60 probability of friend calling in the missed 20 mins.