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rogress of answering is
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 less than 1 year.
A. 0.033373
B. 0.254811
C. 0.966627
D. 0.745189
E. None of the other choices is correct
