Which of the Following Is Not True for an Exponential $\lambda$

question 118

Multiple Choice

Which of the following is not true for an exponential distribution with parameter $\lambda$ ?

• A) Mean =\(1 / \lambda\)
• B) Standard deviation =\(1 / \lambda\)
• C) The distribution is completely determined once the value of \(\lambda\) is known.
• D) The distribution is a two-parameter distribution since the mean and standard deviation are equal.