Question

The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. The percentage of a runners that will run the mile in less than 4 minutes is %.

Answer 1

0

Answer 2

4.5 has a sd of 0.3 min , so range of time is 4.2 min - 4.8 min , now % below 4 min is 0,noone runs before 4 min