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The probability distribution whose mean and standard deviation are equal is _____?
The probability distribution whose mean and standard deviation are equal is _____?
Log-normal distribution
Exponential distribution
Normal
None of these
Explanation
In an
exponential distribution
, the mean (μ) and standard deviation (σ) are equal, i.e., μ = σ = 1/λ,
where λ is the rate parameter.