Suppose that n = 16, and that Xi takes the value 0 with probability 0.5 and the

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Suppose that n = 16, and that Xi takes the value 0 with probability 0.5 and the value 1 with probability 0.5.
Suppose the random variables X1, X2 ... Xn are i.i.d. (independent and identically distributed), and consider the sum Sn =
ΣL Χ.

Find the mean and variance of Sn, and write and sketch the p.d.f. of the approximate normal distribution.

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