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A jewel case contains 7 white gems, 5 green gems, and 3 blue gems. Gems are selected at random. Explain why
the events picking a green gem and then another green gem without replacement are dependent. Then, identify
the probability.

A.) P(green) is the same when it is known that a green gem has been picked already.
P(green and green) = 4/45

B.) Pgreen) is different when it is known that a green gem has been picked already.
P(green and green) = 2/21

C.) P(green) is different when it is known that a green gem has been picked already.
P(green and green) = 5/42

D.) Pgreen) is the same when it is known that a green gem has been picked already.
P(green and green) = 1/9

Sagot :

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