StatisticsTemplate.docx

EDLC 606

Learning Activity: Statistics Exercises Student Template

Type your answers directly in the document in the spaces provided. Please consider highlighting, starring*, or changing the font color of answers for ease of instructor grading. You MUST show your work to be eligible for partial credit.

1. (20 Pts, 1 pt each). Calculate the mean, median, mode, standard deviation, and range for the following sets of measurements (fill out the table):

a. 20, 18, 17, 17, 19

b. 15, 10, 7, 6, 4

c. 28, 28, 28, 28, 28

d. 10, 10, 7, 6, 4, 79

DISTRIB	MEAN	MEDIAN	MODE	SD	RANGE
a.
b.
c.
d.

2. (20 Pts, 5 pts each) Answer the following questions.

a. Why is the SD in (d) so large compared to the SD in (b)?

b. Why is the mean so much higher in (d) than in (b)?

c. Why is the median relatively unaffected?

d. Which measure of central tendency best represents the set of scores in (d)? Why?

3. ( 4 pts) Determine the semi-interquartile range for the following set of scores.

92958965991008567729985100

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