A glass jar contains 6 white, 8 black, 4 red, and 3 blue marbles. If a single marble is chosen at random from the jar, what is the probability that it...

Question

A glass jar contains 6 white, 8 black, 4 red, and 3 blue marbles. If a single marble is chosen at random from the jar, what is the probability that it is black or blue?

Options

A.

821\frac{8}{21}

B.

1121\frac{11}{21}

C.

521\frac{5}{21}

D.

17\frac{1}{7}

probabilitymarblesbasic probabilityrandom selection

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