Question
In each of the following cases compute c > 0 such that f (n) is the...
In each of the following cases compute c > 0 such that f (n) is the pmf of a discrete random variable on {1,2,...}
1. f(n)=cn^(-4)
2. f(n)=(c3^(−n))/n
3. f(n)=c3^(-n)
4. f(n)=(c4^(n))/n!
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