SOLUTION: Two students are to be selected at random from a class with 10 girls and 12 boys. What is the probability that both will be girls? Thank you

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Question 1177217: Two students are to be selected at random from a class with 10 girls and 12 boys. What is
the probability that both will be girls?

Thank you
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

    P = %2810%2F22%29%2A%289%2F21%29 = %285%2F11%29%2A%283%2F7%29 = 15%2F77 = 0.1948 = 19.48%.      ANSWER

Solved.

The formulas are self-explanatory.