A bag contains 4 red marbles, 5 blue marbles, and 6 green marbles. If a marble is chosen at random, what is the probability of picking a red marble?$\frac{5}{15}$
$\frac{9}{15}$
$\frac{6}{15}$
$\frac{4}{15}$
Q.A bag contains 4 red marbles, 5 blue marbles, and 6 green marbles. If a marble is chosen at random, what is the probability of picking a red marble?
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