document.write( "Question 135627: In a Box I have (2 red balls, 3 white balls, and 5 green balls). What is the probability of picking the same color twice? Please show me how to calculate this.\r
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Algebra.Com's Answer #99362 by stanbon(75887)\"\" \"About 
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In a Box I have (2 red balls, 3 white balls, and 5 green balls). What is the probability of picking the same color twice? Please show me how to calculate this.
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\n" ); document.write( "P(2red or 2white or 2green) = P(2red) + P(2white) + P(2green)
\n" ); document.write( "= 2C2/10C2 + 3C2/10C2 + 5C2/10C2\r
\n" ); document.write( "\n" ); document.write( "= (1 + 3 + 10)/45 \r
\n" ); document.write( "\n" ); document.write( "= 14/45\r
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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