Suppose that the random variable x has an exponential distribution with θ = 1.5. Find the mean and standard deviation of x.
A) μ = 1.5; σ = 1.5
B) μ = 0; σ = 1
C)μ = 1.5; σ = 1
D)μ = 0; σ = 1.5

Question

Quizplus · Accepted Answer

For an exponential distribution with parameter θ, the mean (μ) is θ and the standard deviation (σ) is also θ. Therefore, both the mean and standard deviation are 1.5.

Suppose That the Random Variable X Has an Exponential Distribution