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Wewaii [24]
3 years ago
5

A bag contains 7 red marbles, 6 blue marbles and 5 green marbles. If three marbles

Mathematics
1 answer:
Anon25 [30]3 years ago
5 0

Answer:

Step-by-step explanation:

Total = 18 marbles.

Probability of drawing three red marbles = probability of drawing one red without replacement + probab of drawing another without reeplacement + probab of drawing a third without replacement.

Probability of drawing three red marbles = 8/18 + 7/17 + 6/16 = 0.4444 + 0.4118 + 0.3750 = 1.2312.

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