5.20 Pick the incorrect statement Which of the following statements is not correct, and why?

a. If the number of male and female employees at a call center is equal, then the probability you call four times and a female employee answers your call only once is 1/5.

b. You have created a playlist of 100 songs on your MP3 disc. 15 of them are of your favorite artist. You randomly select four tracks from your playlist. The probability that one of them is of your favorite artist is 4 * 10.8523 * 0.15.