Question

1. The following results for the new Level 1 Control were obtained. What are the mean, median, and mode of the data. Calculate the SD and the CV.
   1. 106
   2. 115
   3. 83
   4. 120
   5. 111
   6. 127
   7. 119
   8. 100
   1. 104
   10. 83
   11. 105
   50. 107
   1000. 106
   14. 110
   15. 106
   16. 110
   17. 112
   18. 108
   19. 108
   20. 109
   21. 110
   5. 109
   23. 114
   10. 102

Answer 1

The mean is the "average" we are used to: the sum of all the values and the division by the number of values. In this case, it is 107.7

The median is the "middle" value in the list of numbers, from the smallest to the largest. In this case, it is 108.5

The mode is the most repeated value in the list, in this case, it is 106.

The standard deviation is a measurement of how far are the values on the list from the mean value. In this case, it is 9.64

The coefficient variation, or relative standard deviation is the percentage of the mean that the standard deviation represents. In this case:

9.64 RSD = 100 8 .95 107. 7