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BS/U3 Topic 10 Standard error of estimate

The Standard Error of Estimate is the measure of variation of an observation made around the computed regression line. Simply, it is used to check the accuracy of predictions made with the […]

BS/U2 Topic 7 Range

The Range of a distribution gives a measure of the width (or the spread) of the data values of the corresponding random variable. For example, if there are two random […]

BS/U2 Topic 8 Quartile Deviation

The Quartile Deviation is a simple way to estimate the spread of a distribution about a measure of its central tendency (usually the mean). So, it gives you an idea […]

BS/U2 Topic 10 Co-efficient of Variation

The coefficient of variation (CV) is a statistical measure of the dispersion of data points in a data series around the mean. The coefficient of variation represents the ratio of […]

BS/U2 Topic 11 Skewness

Skewness, in statistics, is the degree of distortion from the symmetrical bell curve, or normal distribution, in a set of data. Skewness can be negative, positive, zero or undefined. A normal […]