Hints: Survival function and hazard rate for the exponential distribution

To solve the problem you need to remember the relations between the density function, the hazard rate and the survival function. In ABG this is discussed in Section 1.1.2. The derivation of these relations are also discussed in the video "Survival function and hazard rate", see link at the bottom of this page.

Solution: To get a detailed solution of the problem, see the link at the bottom of this page.