Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: HEALTH CLUB SCHEDULE The time per workout an athlete uses a stairclimber is normally distributed, with a mean of 20 minutes and a standard deviation of 5 minutes. An athlete is randomly selected. * Find the probability to three significant figures that the athlete uses a stairclimber for less than 17 minutes. _____ * Find the probability to three significant figures that the athlete uses a stairclimber between 20 and 28 minutes. _____ * Find the probability to three significant figures that the athlete uses a stairclimber more than 30 minutes. _____
Right answer summary: part 1: 0.2743; part 2: 0.4452; part 3: 0.0228
Question state: todo