document.write( "Question 1040967: A coin is thrown twice. The sample space is
\n" ); document.write( "S = (HH, HT, TH, TT,)
\n" ); document.write( "A = (HH, HT), B = (HT, TT)
\n" ); document.write( "Find the probability of A, B, AB and A+B.
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #656230 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
P(A) = 1/2
\n" ); document.write( "P(B) = 1/2
\n" ); document.write( "P(AB) = P({HT}) = 1/4
\n" ); document.write( "P(A+B) = p({HH, HT, TT}) = 3/4
\n" ); document.write( "
\n" );