document.write( "Question 1190806: suppose that two balls are selected at random succession without replacement from a box containing five red and three blue balls .If X is the random variable for the number of red balls,find cumulative distribution function of X \n" ); document.write( "
Algebra.Com's Answer #822528 by Boreal(15235)\"\" \"About 
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0 red balls is 5C0*3C2/8C2=3/28
\n" ); document.write( "1 red ball is 5C1*3C1/8C2=15/28
\n" ); document.write( "2 red balls is 5C2*3C0/8C2=10/28
\n" ); document.write( "CDF is 3/28 for 0; 18/28 for 0,1, 1 for 0,1,2.
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