The owner of a small manufacturing plant employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The six distances are listed below:

61 33 18 51 56 18

Listed below are the amounts of weight change (in pounds) for 12 women during their first year of work after graduating from college. Positive values correspond to women who gained weight and negative values correspond to women who lost weight.

4 -8 14 10 -9 12 -6 1 0 4 -3 9

Find the mode(s) for the given sample data.

78 25 78 13 25 29 56 78

Find the variance for the given data. Round your answer to one more decimal place than the original data.

17.5 13.5 16.9 14.5 16.1

Find the number of standard deviations from the mean. Round your answer to two decimal places.

The test scores on the Chapter 3 mathematics test have a mean of 62 and a standard deviation of 11. Andrea scored 86 on the test. How many standard deviations from the mean is that?