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DESCRIPTIVE STATISTICS
• It is used to describe the data that have
collected.
• It refers to procedures for organizing,
summarizing and describing quantitative data
about the samples .
• Ex: measures of central tendency – mean,
mode, median
• Measure of variability – Std, AD and range
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ORDINAL SCALE
• Scale involving ranking of objects,
persons, traits, or abilities without
regard to equality of difference.
• Eg. Line up the students of a class
according to height or merits.
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INTERVAL SCALE
• Interval scales are also called equal
unit scales.
• Scale having equal difference
between successive categories
• Eg. Intelligence scores, personality scores