EM-2869

Independent events

E Math · Secondary 4 · Medium · Independent events

A box has 5 red marbles and 7 green marbles. Two marbles are drawn at random without replacement.
What is the probability that both marbles are green?

$\frac{7}{22}$
$\frac{7}{12}$
$\frac{6}{11}$
$\frac{5}{22}$

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