document.write( "Question 539643: A fair coin is flipped three times. Find the probability that it will come up heads at least twice?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #353493 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A fair coin is flipped three times. Find the probability that it will come up heads at least twice?\r \n" ); document.write( "\n" ); document.write( "-------- \n" ); document.write( "P(x = 2 or x = 3) = 3C2(1/2)^3 + 3C3(1/2)^3 = 3/8 + 1/8 = 4/8 = 1/2 \n" ); document.write( "========= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |