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 series from the arithmetic mean [...]
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 by dividing the sum (total) [...]
In this article we will discuss about Mode:- 1. Meaning of Mode 2. Method of Determining Mode 3. Merits 4. Demerits. Meaning of Mode: Mode is another unit of measurement of central tendency which is used to obtain a quick estimate of central tendency. Mode is defined as the particular value which appears again and again for maximum number of [...]