If 'm' is the mean of a Poisson Distribution, then variance is given by?

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If 'm' is the mean of a Poisson Distribution, then variance is given by? Answer: m

In a Poisson distribution, both the mean and the variance are equal to the same value m. This property makes the Poisson distribution unique among discrete probability distributions.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.