The average time to complete a certification exam is 2 hours and 40 minutes (160 minutes) with a standard deviation equal to 25 minutes. Assume normal distribution applies.

What is the probability that a random individual finishes the exam in exactly two hours (120 minutes)?

a. 0.000

b. 0.426

c. 0.821

d. 0.145

What is the probability that it takes a student 115 or fewer minutes to complete the test?

a. 0.0359

b. 0.9192

c. 0.4251

d. 0.6315