Wednesday
July 23, 2014

Homework Help: statistics

Posted by John on Saturday, September 26, 2009 at 7:11pm.

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.

3.
c.Find the probability that both balls selected are green.

4.
d.Find the probability that the first ball selected is green or the second ball selected is red.

5.
e.Find the probability that at least one of the balls is odd.

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