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A coin is tossed 10 times.  How many different sequences of tosses could there have been, if at least $5$ of the tosses were heads?

 Oct 4, 2021
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10c5   10c6  10c7   10c8   10c9  10c10

252 +   210 + 120  + 45 +   10     + 1  =                   ( I think !)

 Oct 4, 2021

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