A coin is tossed 5 times. Let the random variable ? be the difference between the number of heads and the number of tails in the 5 tosses of a coin. Assume ?[heads] = ?.
Find the range of ?, i.e., ??.
Let ? be the number of heads in the 5 tosses, what is the relationship between ? and ?, i.e., express ? as a function of ??
Find the pmf of ?.
Find ?[?].
Find VAR[?].
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