Chapter 4. Looking at Data: Measures of Central Tendency
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Name:
Class:
Date:
From Kiess and Green’s
Statistical Concepts for the Behavioral Sciences, 4/e
Assignment 4.1
The purpose of this assignment is to help you to become more comfortable in recognizing
what each statistical symbol and formula in Chapter 4 represents. For each item in the
table below, either the term, symbol, or definition is given. Complete the following table
with the missing information. For example, for the term
sample mean
, provide the
symbol and definition in the appropriate columns. It is best to complete this page without
looking at your notes or textbook. Once you have completed it, refer back to your notes
and textbook to verify you are correct.
Term
Symbol
Definition (also include formula as appropriate)
Sample
mean
Mdn
None
One of the three measures of central tendency covered in the
textbook. It represents the most frequently occurring score.
Σ
SS
Population
mean
This intermediate step is needed for finding the sum of the
squared deviations. If you sum this and your work is correct, it
will sum to zero.

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