document.write( "Question 491062: A bag contains a total of 20 batteries, of which four are defective. Selecting two at random, without replacement, determine the probability that none of the batteries you select are good.\r
\n" ); document.write( "\n" ); document.write( "1. 3/95
\n" ); document.write( "2. 3/5
\n" ); document.write( "3. 1/5
\n" ); document.write( "4. 4/95\r
\n" ); document.write( "\n" ); document.write( "Which one should it be? Can I have help, please? \n" ); document.write( "

Algebra.Com's Answer #334466 by Edwin McCravy(20063) $\"\"$ $\"About$

You can put this solution on YOUR website!
A bag contains a total of 20 batteries, of which four are defective. Selecting two at random, without replacement, determine the probability that none of the batteries you select are good.
\n" ); document.write( "

\r\n" );
document.write( "The sample set is the ways to choose any 2 out of the 20, or \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "These:\r\n" );
document.write( "\r\n" );
document.write( "16 good ones, choose 2, or 16C2, \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "out of these:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "20 batteries choose 2 or 20C2\r\n" );
document.write( "\r\n" );
document.write( "Answer: \r\n" );
document.write( "\r\n" );
document.write( "Edwin

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );