Homework Help: math

Posted by Nick on Tuesday, January 31, 2012 at 8:57pm.

Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a green marble, replacing it, and then picking a brown marble?

math - Reiny, Tuesday, January 31, 2012 at 9:12pm
prob(green, then brown)
= (4/19)(1/19) = 4/361

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