SOLUTION: a class consists of 8 men and 7 ladies. two students were selected randomly to represent the class in a debate. find the probability that the two students are both ladies

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Question 1174074: a class consists of 8 men and 7 ladies. two students were selected randomly to represent the class in a debate. find the probability that the two students are both ladies
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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    Probability  P = %287%2F15%29%2A%286%2F14%29 = %281%2F15%29%2A%286%2F2%29 = 3%2F15 = 1%2F5 = 0.2 = 20%.    ANSWER


The remarkable number 15 in this formula is 8+7.

Solved.

The formula is self-explanatory.