document.write( "Question 199840: the theoretical proportion of heads should be 50% in flips of a coin. The law of large numbers says that as you flip more coins the closer the observed proportion will be to 50%\r
\n" ); document.write( "\n" ); document.write( "How likely do you think it is to flip 85 heads and 15 tails in flips of a coin?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #150350 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
this is a binomial expansion problem\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "where \"h\" is the probability of a head and \"t\" is the probability of a tail, using 100 (85+15) flips\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "100C85(h^85)(t^15) or 2x10^-13 (approx)
\n" ); document.write( "
\n" );