CJ 301
Assignment # 4 – Measures of Dispersion
–Please answer each of the following questions. Also, INTERPRET your answers.
In order to complete this assignment please read the lecture: Measures of Dispersion under the Learning Modules. (RANGE, MEAN DEVIATION, VARIANCE, STANDARD DEVIATION).
Due date: February 15, Sunday (by midnight)
*20 points total
NAME: _______________________________________________________________
3 7 3 2 10
Find the mode.
Find the median.
Find the mean.
What are the four different measures of dispersion? 1 point
3. Why is the range the most convenient measure of dispersion, yet the most imprecise measure of variability? When would you use the range? 1 point
What is (are) the difference between measures of central tendency and measures of dispersion? 1 points
5. A study based on a sample of 9 students yields the following scores on a 10-point scale of cultural diversity awareness. 5 points
2 6 8 7 1 2 7 2 3
2
6
7
4
7
Question: What is the standard deviation? 4 points
2
8
5
4
5
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