Answers by visitors named: Bladimir

CARDS:red=6; black=16 ... total 22 a.(6 nCr 4)/(22 nCr 4) = .002 b.(6 nCr 2)(16 nCr 2)/(22 nCr 4)= .246 c.1-(.249) = .751 ... get d first d.(16 nCr 22)/(22 nCr 4) = .249

Oh thanks. I actually thought it was 33% because there were 3 pieces

number 1 choice b is 9

3.60