document.write( "Question 373914: there are 20 employees at plant A and 10 employees at plant B. A random sample of 6 employees is chosen. What is the probability that 2 are at plant B?
\n" ); document.write( "What is the probability that 4 are at plant A?
\n" ); document.write( "

Algebra.Com's Answer #266249 by edjones(8007)\"\" \"About 
You can put this solution on YOUR website!
nCr=Combination of n things taken r at a time
\n" ); document.write( ".
\n" ); document.write( "(10C2*20C4)/30C6
\n" ); document.write( "=(45*4845)/593775
\n" ); document.write( "=218025/593775
\n" ); document.write( "=.3672 The same answer applies to both questions because when there are 2 at plant B there are 4 at plant A.
\n" ); document.write( ".
\n" ); document.write( "Ed\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );