There are 24 = 16 ordered outcomes, that is outcomes in which the order of the results is relevant. If not, there are 5 outcomes (0 heads, 1 head, 2 heads, 3 heads and 4 heads).
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If you flip a coin 2 times, there are 4 possible outcomes; HH, HT, TH, TT.
Four outcomes, three combinations.
Two possible outcomes for each flip. 2,048 possible histories of 11 flips.
enless you include it landing on it's side the two possible outcomes for this are: Heads and Tails
3 ways, out of 12 possible outcomes.