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Mathematics 20 Online
OpenStudy (anonymous):

A bag has5 red marbles, 6 black marbles and 4 blue marbles. What is the probability of picking a red marble, replacing it and picking a blue marble?

OpenStudy (anonymous):

4/45 1/9 8/75 2/15 I know it is easy but I just can't get the right answer...

OpenStudy (anonymous):

@Hero can you help me again please, I thank you so much for everything you did so far

OpenStudy (anonymous):

or if @ganeshie8 could you please help me?

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