masonbruner
contestada

A bag contains 7 red marbles, 4 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that all three marbles drawn will be green?

Respuesta :

niwahang820

Answer:

0.063

Step-by-step explanation:

Pr(3R) = 7/16 x 6/15 x 5/14 = (7)(6)(5)/(16)(15)(14) = 6x5/16x15x2 = 5/16x5= 1/16 = (1/2)(.125) = 0.0625

Probability of 3 reds = 0.0625

round off to thousandths Pr(3R) = 0.063

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