In this article we will discuss about Median:- 1. Meaning of Median 2. Methods of Determining Median 3. Merits 4. Demerits. Meaning of Median: When the values of all items of a series are arranged in increasing (ascending) or decreasing (descending) order it is usually called an array and the middle item of an array […]
Median: Methods, Merits and Demerits
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Standard Deviation: Meaning and Methods
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In this article we will discuss about meaning and methods of calculation of Standard Deviation. Meaning of Standard Deviation: The best and most important measure of dispersion is standard deviation which was first worked out by Karl Pearson (1833). It is the positive square root of mean of deviations of individual values of a data […]
Arithmetic Mean: Methods, Merits and Demerits
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In this article we will discuss about Arithmetic Mean:- 1. Meaning of Arithmetic Mean 2. Short Cut Method of Determining Arithmetic Mean 3. Merits 4. Demerits. Meaning of Arithmetic Mean: The mean is a measurement of unit most frequently used to describe a frequency distribution of same type. The arithmetic mean or average is calculated […]
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