You've essentially got:parveen110 wrote:
My approach:
6/6 * 1/6 * 5/6 * 4/6 = 5/54.
Where is this approach flawed?
First Die = Anything
Second Die = Same as first
Third Die = Different from first two
Fourth Die = Different from first three
This is a totally intuitive approach, but it's too restrictive: we don't have to be sure that the first two dice are the two that match. We also could have more than one pair, so we need to consider that scenario too.
