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Find the probability.
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Find the probability.

There are 4 purple, 4 gray, 2 green, and 3 navy marbles in a hat. You pick 2 marbles from the hat. Marbles are not returned after they have been drawn. P(the first marble is navy and the second marble is not green)
Question asked by: mrpulley

Asked on: 01 Feb 2011

So there are 13 marbles in the hat. And you pick two. The chance the first is navy is therefore 3/13 and then it is not returned so on the second the chance is out of 12 so therefore that the second being not green is then 10/12

Multiply them together to get the chance of the combined probability to get 0.192

By: knowitall
Replied at: 05 Feb 2011
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