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you have a jar of marbles. There are 15 red, 20 blue,7 green, and 18 red marbles. You choose one at random then replace it and choose another. What is the probability of both being blue?
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you have a jar of marbles. There are 15 red, 20 blue,7 green, and 18 red marbles. You choose one at random then replace it and choose another. What is the probability of both being blue?

User Josh Curren
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8.5k points

2 Answers

1 vote
The probability of blue is 20/60
2 blue would be (20/60)(20/60) which is .1111
User Salman Sarray
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8.6k points
5 votes
1 out of 3 chance.
20 out of 60 marbles are blue.
20/60 = 1/3
User Beavel
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8.9k points
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