Consider the following hierarchical random variable

- \(\lambda \sim \mbox{Geometric}(p)\)
- \(Y \mid \lambda \sim \mbox{Poisson}(\lambda)\)

Compute \(\mathbf{E}(Y)\).

Learning probability by doing !

Consider the following hierarchical random variable

- \(\lambda \sim \mbox{Geometric}(p)\)
- \(Y \mid \lambda \sim \mbox{Poisson}(\lambda)\)

Compute \(\mathbf{E}(Y)\).

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