If μ is the mean and σ is the standard deviation of an exponentially distributed random variable with parameter λ, then which one of the following relations between μ and σ hold?
1
μ = σ
2
μ = σ1/2
3
μ = σ2
4
μ = σ -2
If μ is the mean and σ is the standard deviation of an exponentially distributed random variable with parameter λ, then which one of the following relations between μ and σ hold?
μ = σ
μ = σ1/2
μ = σ2
μ = σ -2