A jar contains 30 marbles. It has 10 red, 8 black and 12 green marbles. Two marbles are drawn, the first is not returned before
1 answer:
Answer:
P(Both Green) = 22/145
Step-by-step explanation:
The probability of drawing green on the first drawn is P(First Green) = 12/30 = 2/5.
Having drawn green in the first drawn, the probability of drawning green in the second drawn is P(Second Green) = 11/29.
Then, the probability that both marbles are green is obtained by multiplying both probabilities as follows:
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