Teachers employ statistics more often than they realize; for example, they need to summarize/describe 1) each student’s performance every quarter regularly or 2) the students’ performance as a class, etc.
One way data sets (such as students’ grades or number of absences, etc) are usually summarized is by using tables.
Click here to review different types of frequency distribution tables.
An alternative to summarizing data sets is by using graphs or charts.
Click here to review different ways of graphing data.
Did you notice that some graphs CANNOT be used with categorical data? Categorical data are sometimes referred to as qualitative or nominal-level data.
Click here to review how to differentiate nominal from the other three types of data/variables based on levels of measurement.
Aside from graphs and tables, teachers often compute a value to numerically describe or summarize any given data set.
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sir, page cannot be displayed nanaman yung click here sa tables & graphs....---jan sanchez
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