Advanced Placement (AP), 06.05.2020 00:24, leilaford2003

The finishing times of a 5K race run by competitive male runners age 15-18 are approximately normal distribution with a mean time of 18 minutes and a standard deviation of 2 minutes. A particularly tough 5K race tends to take these same runners 4.5 additional minutes. To earn a completion medal in this particular 5K race, the runner must complete the race within 25 minutes.

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The finishing times of a 5K race run by competitive male runners age 15-18 are approximately normal...