Sixteen outcomes could occur:
FFFF | FMFF | MFFF | MMFF |
FFFM | FMFM | MFFM | MMFM |
FFMF | FMMF | MFMF | MMMF |
FFMM | FMMM | MFMM | MMMM |
The reason b) is the correct answer is that they can be grouped. Here is
a rearrangement of these outcomes in three sets:
All one kind:
FFFF MMMM
Three of one kind:
FFFM FFMF FMFF FMMM MFFF MFMM MMFM MMMF
Two of each kind:
FFMM FMFM FMMF MFFM MFMF MMFF
More Probability