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Frequency distribution
A frequency distribution is a series where a number of items with similar values are put in separate groups or bunches. In other words a frequency distribution is a table in which the data ground into classes are recorded. In the words of croxton and Cowden frequency distribution is a statistical table which show the set of all distinct values or sizes or measurements, and on its right the number of times the value is repeated which is called number of items or frequency or number of observations. Formation of a discrete frequency distribution.
The process of preparing discrete frequency distribution ia as under:
(1) All value from lowest to the highest be placed in Column no.
(2) Put a tally bar vertical line opposite the value to which it realates. To facilitate counting sets of five tally bars is prepared and some space is left between two sets of tallies.
(3) Then finally the number of tallies are canted and frequency for each size or value is obtained.
Comparison of the Principal Averages-Mean, Median and Mode The mean, median, and mode are located at the same point in a symmetrical frequency distri
programming
Median Median is a position average. It is the value of middle item of a variable when the items are arranged according to their values either in ascending or descending order.
Mean Absolute Deviation To avoid the problem of positive and negative deviations canceling out each other, we can use the Mean Absolute Deviation which is given by
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what are the challenges affecting population census in developing countries
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