
Larry S. answered 04/29/20
Cornell Engineering Grad for SAT Math, Physics, all High School Math!
There are 8 7th graders and 4 of them are boys, so the probability of picking a boy from that group is 4 out of 8, or 4/8 or 1/2
There are 10 8th graders and 7 of them are boys so the probability of picking a boy from that group is 7/10
Tbe probability that both students picked are boys is 1/2 times 7/10, or 7/20

Larry S.
Anytime!04/29/20
Ava H.
thank you so much04/29/20