document.write( "Question 1153838: An organization consisting of 26 women and 15 men needs to select from its ranks a committee of 4 people.\r
\n" ); document.write( "\n" ); document.write( "If the members of the committee are selected at random, what is the probability that the committee will consist of only women?
\n" ); document.write( "

Algebra.Com's Answer #776155 by ikleyn(52903)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "
\r\n" );
document.write( "\r\n" );
document.write( "    P = \"C%5B26%5D%5E4%2FC%5B41%5D%5E4\"\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The formula says that the probability is the ratio of the number of quadruples(4 women) taken from 26 women\r\n" );
document.write( "to the number of all possible quadruples of 4 persons selected from 26+15 = 41 person.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\"C%5B26%5D%5E4\" = 14950\r\n" );
document.write( "\r\n" );
document.write( "\"C%5B41%5D%5E4\" = 101270\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "P = \"14950%2F101270\" = 0.1476.     ANSWER\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "NOTE:   I used  Excel-function  COMBIN(n,k)  to calculate  \"C%5Bn%5D%5Ek\"  quickly and with no headache.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );