document.write( "Question 1089624: You randomly select 2 marbles from a mug containing 7 blue marbles, 3 red marbles, and 2 white marbles. How many times greater is the probability of selecting 2 red marbles when you replace the first marble before selecting the second marble than when you do not replace the first marble before selecting the second marble?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #703970 by math_helper(2461)\"\" \"About 
You can put this solution on YOUR website!
A = P(RR) without replacement = (3/12)*(2/11) = 6/132 = 2/44 = 1/22
\n" ); document.write( "B = P(RR) with replacement = (3/12)*(3/12) = 9/144 = 3/48 = 1/16\r
\n" ); document.write( "\n" ); document.write( "So B/A = (1/16)/(1/22) = \"+highlight%281.375%29+\"
\n" ); document.write( "———
\n" ); document.write( "8/4/17 - Edited to correct Pr(event A), I had 2/43 it should be 2/44=1/22.
\n" ); document.write( "
\n" );