Mathematics, 25.02.2021 02:50 brittnum9044

. An unfair coin is weighted so that the expected number of tails before the ﬁrst heads is 3. What is the standard deviation of the number of tails that come up before the ﬁrst heads?

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. An unfair coin is weighted so that the expected number of tails before the ﬁrst heads is 3. What i...

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