The following points highlight the top three ways to measure dispersion. The ways are: 1. Variance 2. Standard Deviation 3. Coefficient of Variation. Way # 1. Variance: Variance depends on the deviations where the squared deviations are summed up and then divided by the number of observations to get the sample variance. It has a distinct advantage over mean deviation [...]
The following points highlight the top three kinds of mathematical average. The kinds are: 1. Mean 2. Mode 3. Median. Kind # 1. Mean: (A) Arithmetic Mean: It is most commonly used of all the averages. It is the value which we get by dividing the aggregate of various items of the same series by the total number of observations. [...]
The below mentioned article provides a study note on test of significance. Test of Significance: In biological research when we compare any character of two samples, we calculate the significance of difference in the mean and variance to draw a meaningful conclusion. For example, if we are interested to compare the protein content of two seed varieties of maize or [...]