The Time (In Years)until the First Critical-Part Failure for a Certain

Multiple Choice

The time (in years) until the first critical-part failure for a certain car is exponentially distributed with a mean of 3.4 years. Find the probability that the time until the first critical-part failure is 5
Years or more.

A) 0.770210
B) 0.229790
C) 0.506617
D) 0.493383