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Averages from a grouped table

Inequalities are often used in grouped tables. For example, the category \(0 \textless m \leq 4\) means that \(m\) is larger than 0 but less than or equal to 4. If data is organised into groups, we do ...
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A Linear Approximator for the Class Marks of a Grouped Frequency Distribution, with Especial Reference to the Unequal Interval Case

This paper offers class mark estimators for the intervals of a grouped frequency distribution, derived by parabolic interpolation between any given interval and its adjacent intervals. The objective ...
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Averages from a grouped table

Inequalities are often used in grouped tables. For example, the category \(0 \textless m \leq 4\) means that \(m\) is larger than 0 but less than or equal to 4. 1. Find the modal group for the number ...