A Physical Fitness Association Is Including the Mile Run in Its

Multiple Choice

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 470 seconds and a standard deviation of 60 seconds. The fitness association wants to recognize the fastest 10% of the boys with certificates of recognition. What time would the boys need to beat in order to earn a certificate of recognition from the fitness association?

A) 568.7 seconds
B) 393.2 seconds
C) 371.3 seconds
D) 546.8 seconds