Which of the five curves A B C D E represents the Weibull di

Which of the five curves A, B, C, D, E, represents the Weibull distribution, with shape parameter k = 1.

Please provide an explanation for the answer.

Solution

Curve D represents the Weibull distribution, with shape parameter k = 1.

A value of k = 1 indicates that the failure rate is constant over time. This might suggest random external events are causing mortality, or failure.