7.1 Basic measures of central tendency
7.1.1 Arithmetic Mean
7.1.2 Arithmetic Mean by Deviation Method
7.1.3 Median
7.1.4 Mode
7.2 Organisation of Grouped Data
7.2.1 Interpretation of Grouped frequency distribution
7.2.2 Limits and Boundaries
7.2.3 Construction of grouped frequency Distribution
7.3 Cumulative Frequency
7.4 Graphical Representation of Data
7.4.1 Bar Graph
7.5 Graphical Representation of Grouped Frequency Distribution
7.5.1 Histogram
7.5.2 Frequency Polygon
7.5.3 Frequency Curve for a grouped frequency distribution
7.5.4 Graph of a Cumulative Frequency Distribution
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