D Question 8 6 pts The frequency table below shows the number of days off in a given year for police detectives. Find the standard deviation of the frequency distribution. Round your answer to one more decimal place than is present in the original data values. Days Off / Frequency 0-2 7 2 3- 5 6 6-8 9-11 1 4 12-14 10 15-17 / 1 D Question 9 8 pts Scores on a test have a mean of 67 and a standard deviation of 8. Michelle has a score of 78.21. Convert Michelle's score to a z-score