Multiple Choice
An urn contains 3 red, 2 blue, and 5 green marbles. If we pick 4 marbles with replacement and count the number of red marbles in the 4 picks, the random variable is:
A) the number of red marbles.
B) the number of red, blue, or green marbles.
C) the number of green marbles.
D) None of the answer options is correct.
Correct Answer:

Verified
Correct Answer:
Verified
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