Find expected value and standard error for difference

Reference no: EM13120241

1. A coin is tossed 100 times.

a) the difference "number of heads - number of tails" is like the sum of 100 draws from one of the following boxes. which one, and why?

(i) heads, tails (ii) -1, 1 (iii) -1, 0 (iv) 0, 1 (v) -1, 0, 1

b) find the expected value and standard error for the difference.

Reference no: EM13120241

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