Question

What are the chances of flipping a coin 12 times and it landing on heads 11 times?

Answer 1

12 flips, 11 heads, 1 tails
Let's say there's a 50-50 chance of landing heads.
There are 12 flips and 12 specific outcomes.
The probability is 2^(-12) = 1/4096 = 0.0244%

If the last flip doesn't matter, then the probability would be 2^(-11) = 1/2048 = 0.0488%.

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From your friendly Helper-in-Training, collinjun0827