Consider the set {4, 5, 7, 8, 8, 12, 13, 13, 15, 18, 20, 22, 24, 26, 27, 37, 38}. if you were dividing the set into intervals, which is the best interval for the first subset of data?

OK. 

If you predict a number between 1 and 6, and
also predict heads or tails, then roll and flip,
the probability that the roll and flip will all fall
exactly like you predicted is

             (1/6) x (1/2) = 1/12 = (8 and 1/3) % .

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