document.write( "Question 383055: A student tossed three coins. What is the probability of getting at least two heads? This is a Probabilty of independant events 1/2 * 1/2 = 1/4 or 25% \n" ); document.write( "
Algebra.Com's Answer #271339 by stanbon(75887) ![]() You can put this solution on YOUR website! A student tossed three coins. What is the probability \n" ); document.write( "of getting at least two heads? \n" ); document.write( "---- \n" ); document.write( "P(2<= x <=3) = 3C2(1/2)^3 + 3C3(1/2)^3 = (3+1)/8 = 1/2\r \n" ); document.write( "\n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |