document.write( "Question 731105: A bag contains 12 red and 8 blue marbles. If you randomly select 2 marbles, what is the probability that they are the same color? \r
\n" ); document.write( "\n" ); document.write( "I feel like this is an nPr or a nCr, but I am unsure. \n" ); document.write( "

Algebra.Com's Answer #853009 by ikleyn(53423) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "A bag contains 12 red and 8 blue marbles. If you randomly select 2 marbles, what is the probability
\n" ); document.write( "that they are the same color?
\n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "P = P(red,red) + P(blue,blue) =  +  =  =  =  = 0.4947  (rounded).    ANSWER\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The answer in the post by @lynnlo is incorrect.
\n" ); document.write( "Simply ignore his post.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );