Thursday
August 27, 2015

Homework Help: Math/Statistics

Posted by John on Sunday, September 27, 2009 at 7:23am.

I don't get how to do this...can anyone help?

1. In a large box are 20 ping-pong ballsó10 of them are red and numbered 1 through 10, and the other 10 of them are green and also numbered 1 through 10. Two balls are selected from the box without replacement.

1.
a.Find the probability that the first ball selected is red and even.

2.
b.Find the probability that the first ball selected is red OR even.

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