Question: Note sure how to solve this: Let Hn and T be the number of heads and tails when a fair coin is tossed n times.

Note sure how to solve this:

Note sure how to solve this: Let Hn and T be

Let Hn and T be the number of heads and tails when a fair coin is tossed n times. Define Sn = Hn - In. (a) [10 marks] Compute the moment generating function of S, as a closed form. (b) [10 marks] Prove that for 0 an)]]/" -> [(1 + a)lto(1 - a)1-aj-1/2 as n - 00

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