A runner's distribution of times for running 1,000 meters has a mean of 4.5 minutes with a standard deviation of 0.75 minutes. One of the runner's times has a z-score of -1.08. Which of the following statements is the best
interpretation of this Z-score?
This runner's time was faster than the mean time by 0.75 standard deviations
O This runner's time was faster than the mean time by 1.08 standard deviations.
O This runner's time was slower than the mean time by 0.75 standard deviations.
O This runner's time was slower than the mean time by 1.08 standard deviations