PRC-2 · Chapter 11 · Question 54 of 60
In a Poisson Distribution, what specific condition must be true regarding the mean (μ) and the variance (σ²)?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) Mean = Variance
Explanation
A unique property of the Poisson distribution (often used for modeling the frequency of rare events over time) is that its mathematical mean and variance are perfectly equal.
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