SOLUTION: Please can you help me?? There are 70 high school students attending the annual Johnson High School junior and senior dance. Of the 70 students attending, 30 of the students are g

Question 876655: Please can you help me??
There are 70 high school students attending the annual Johnson High School junior and senior dance. Of the 70 students attending, 30 of the students are girls, 24 of the students are seniors, and 6 of the girls are seniors.
Given that a student is a girl, what is the probability that she is a junior? Show your work.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
P(A|B) = P(A and B)/P(B)
Of the 70, attending 46 are juniors(24 are girls)
P(girl) = 30/70, P(girl and Jr) =
P(Jr | Girl) = = 24/30= 8/10
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