Solve the Problem. -A Physical Fitness Association Is Including the Mile Run in Mile

Multiple Choice

Solve the problem.
-A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a
Standard deviation of 50 seconds. Find the probability that a randomly selected boy in secondary school can run
The mile in less than 345 seconds.

A) 0.9893
B) 0.4893
C) 0.0107
D) 0.5107