Question

The length of time in minutes required to complete a series of physical therapy exercises is normally distributed with a mean of 70 minutes and a standard deviation of 12 minutes. what percent of patients can be expected to require more than 70 minutes to complete the series?

Answer 1

50%, because if the mean (half way) is 70 that mean than anything beneath 70 will represent 50% and anything above will represent the same amount.