A bag contains 10 marbles - 7 red, and 3 green. What is the probability that there will be exactly 1 green marble in a sample of 3?
Is it:
$\displaystyle \frac{3}{10} * \frac{7}{9} * \frac{6}{8} * 3C1 $ ?
A bag contains 10 marbles - 7 red, and 3 green. What is the probability that there will be exactly 1 green marble in a sample of 3?
Is it:
$\displaystyle \frac{3}{10} * \frac{7}{9} * \frac{6}{8} * 3C1 $ ?