document.write( "Question 921937: A box contain 4 red balls and 3 black balls. A ball is drawn random from the box, its color is noted and is not replaced. the process is repeated until two red balls are obtained. If X represents the number of draws needed to get two red balls, determine P(X<3) \n" ); document.write( "
Algebra.Com's Answer #559337 by ewatrrr(24785)\"\" \"About 
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7 Balls: 4R, 3B
\n" ); document.write( "A ball is drawn random from the box, its color is noted and is not replaced....
\n" ); document.write( "If X represents the number of draws needed to get two red balls,
\n" ); document.write( "determine P(X<3) = P(X = 2) = P(1stR AND 2ndR) = \"%284%2F7%29%283%2F6%29\" = 12/42 = 2/7
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