Posted by **chris** on Sunday, January 23, 2011 at 2:37pm.

a bag contains 12 black checkers and 12 red checkers. What is the probability of choosing two red checkers?

- math -
**Reiny**, Sunday, January 23, 2011 at 3:46pm
Did this students have the complete question?

http://www.jiskha.com/display.cgi?id=1275904679

Yours in incomplete.

You don't say how many checkers are chosen.

- math -
**MathMate**, Sunday, January 23, 2011 at 3:46pm
P(R1)=12/24 (first red)

P(R2)=11/23 (second red)

P(2*R)=(12/24)*(11/23)=11/46 (both red)

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