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Gathering and Compiling Data
Once
we have gathered the data from our sample, we can visually inspect
and analyze it with statistical methods. Recall, that one
of the human capabilities is to easily draw inferences from graphical
or pictorial information. So, we will convert our data to
a frequency table that is then plotted as a frequency distribution
diagram. This will enable us to look for data tendencies and
perform some basic statistical calculations.
Frequency
Data Table
Test
Scores Grouped by 5-Unit Intervals
N=7300, Avg.=74.1
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Even
before plotting the data, we can begin to see data trends just from
the frequency data table.
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