Most Production Model Hybrid Cars Use a Large Battery as the Core

Multiple Choice

Most production model hybrid cars use a large battery as the core component of their power system.The battery lifetime of a particular hybrid are follows an exponential distribution with a mean lifetime of 8.62 years.What is the probability that one of these hybrid cars will have a battery that will last between 8 and 10 years?

A) 0.3953
B) 0.0819
C) 0.6047
D) 0.1160