Statistics

8. Calculate the standard deviation of the sample data shown. to two decimal places I! m E In El E5 m A sample of size n = 10 is drawn from a population. The data is shown below. 79.6 88 72.6 95.5 62.5 95.5 79.2 52.8 65.2 95.5 What is the range of this data set? \\ What is the standard deviation of this data set? (Remember. it is a sample.) Please report the answer with appropriate rounding. reporting 2 more decimal places than the original data. Please, please, please do not calculate the value by hand. sum: 10. On a recent quiz. the class mean was 77 with a standard deviation of 4.5. Calculate the zscore (to 2 decimal places) for a person who received score of 80. If a score is more than 2 standard deviations away from the mean, we often consider it unusual. Is this unusual? 0 Not Unusual O U nusual