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 450 seconds and a standard deviation of 40 seconds. Between what times do we expect most (approximately 95%) of the boys to run the mile?
◦ between 371.6 and 528.4 sec
◦ between 0 and 515.824 sec
◦ between 384.2 and 515.824 sec
◦ between 355 and 545 sec