SOLUTION: There is a bag filled with 3 blue and 4 red 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.

Question 1131632: There is a bag filled with 3 blue and 4 red 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?

Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
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There is a bag filled with 3 blue and 4 red marbles.
A marble is taken at random from the bag, the color is noted and then the ball is returned back to the bag.
Another marble is taken at random.
What is the probability of getting 2 blues?
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ANSWER.   =  = .


The formula is self-explanatory.

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