Question

The theoretical probability that a pop song plays on your MP3 player is 0.45. There are 80 songs on your MP3 player. How many of the songs are pop songs?

___ songs on your MP3 player are pop songs.

Answer 1

If the probability of pop songs is 0.45, that means the expected value of the number of pop songs is .45 x 80 =36 pop songs