document.write( "Question 1178705: According to the Federal Communications Commission, 70% of all U.S.
\n" ); document.write( " households have VCRs. In a random sample of 15 households, what is
\n" ); document.write( " the probability that exactly 10 have VCRs?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #808061 by ikleyn(52786)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "According to the Federal Communications Commission, 70% of all U.S.
\n" ); document.write( "households have VCRs. In a random sample of 15 households, what is
\n" ); document.write( "the probability that exactly 10 have VCRs?
\n" ); document.write( "~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "It is the binomial type probability distribution.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The number of trial n= 15; the probability of the success trial is  0.7,  and the number of success trial k = 10. \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    P = \"C%5B15%5D%5E10%2A0.7%5E10%2A%281-0.7%29%5E%2815-10%29\" = \"%28%2815%2A14%2A13%2A12%2A11%29%2F%281%2A2%2A3%2A4%2A5%29%29%2A0.7%5E10%2A0.3%5E5\" = 0.20613  (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( "To see many other similar solved problems, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Simple and simplest probability problems on Binomial distribution \r
\n" ); document.write( "\n" ); document.write( "    - Typical binomial distribution probability problems \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );