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# Probability and Marbles: Choosing a Red

SATSTM-1XG9U1

A bag of marbles has $3$ blue marbles, $4$ red marbles, and $7$ green marbles.

If one marble is drawn from the bag, then what is the probability that the marble is red?

A

$\cfrac{3}{14}$

B

$\cfrac{1}{4}$

C

$\cfrac{2}{7}$

D

$\cfrac{1}{2}$

E

$\cfrac{1}{3}$