3 rock songs 2 reggae songs and 2 country songs. She randomly pick first song to play, she pick second song from the list.probability that the first song is country song and the second is reggae song?

Question

sorry about the spelling, i had to shorthen it

Answer 1

P(A) and P(B) = P(A) x P(B)

P(A) = number of country songs/total number of songs = 2/7

P(B) = number of reggae songs/total number of songs = 2/6 = 1/3 (One was already picked, so there are only 6 left)

P(A) and P(B) = (2/7)(1/3) = 2/21

Answer 2

total of 3+2+2 songs = 7

probability of country = number of country songs/ total= 2/7

probability of reggae= number of reggae /total, however since she already pick 1song already, the total is now 6,

so probability of reggae= 2/6

i hope thats helpful