PGF and Mean
For a suitable PGF:
$$G_X'(1)=E[X]$$
Usage
- Used to calculate the mean of a counting random variable.
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CAT Formulas
Probability
PGF and Mean
PGF and Mean
For a suitable PGF:
$$G_X'(1)=E[X]$$
Usage
- Used to calculate the mean of a counting random variable.
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