Question

For standard exponential distribution, variance of the distribution is A) 1 B) 0 C) 2 D) none of these​

Answer 1

Given,

For standard exponential distribution, variance of the distribution is___

Solution,

Know that if the mean of the exponential distribution is $\[\frac{1}{\lambda }\]$, therefore, the variance of the standard exponential distribution is $\[\frac{1}{{{\lambda ^2}}}.\]$

Hence, the correct option is (D) i.e. None of these.