There is a bag filled with 3 blue, 4 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of getting 2 blues?
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Answered by
10
Answer:
total marbles= 12
probability of getting 2 blue marbles= 2/12= 1/6
Answered by
0
Answer:
1/9
Step-by-step explanation:
We have (4 blue + 3 red + 5 green) = 12 total marbles
With replacement, the probability of getting one blue is 4/12 = 1/3
Since each draw is independent of the last, the probability of Blue, Blue = 1/3 * 1/3 = 1/9
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