SOLUTION: If two marbles are drawn randomly from the jar in a jar with 13 black and 12 red marbles, what is the probability that the first is red and the second is black if the the marbles a
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Question 142154: If two marbles are drawn randomly from the jar in a jar with 13 black and 12 red marbles, what is the probability that the first is red and the second is black if the the marbles are drawn (a) with replacement? (b) without replacement
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If two marbles are drawn randomly from the jar in a jar with 13 black and 12 red marbles,
what is the probability that the first is red and the second is black if the the marbles are drawn
(a) with replacement?
Independent Case:
P(red and black) = P(red) * P(black) = 12/25 *13/25 =
-----------------------
(b) without replacement
Dependent Case:
P(red and black) = P(red) * P(black|red)
= 12/25 * 13/24
==================
Cheers,
Stan H.
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