Variance of a grouped or continuous frequency distribution

Median of grouped or continuous frequency distribution

Mean Deviation of a Grouped or Continuous Frequency Distribution

Computation of mode for a continuous frequency distribution - Method

Arithmetic mean of a continuous frequency distribution

Find the median of the following continuous frequency distribution

For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respecitve classes and abscissae are, respectively

Mean of Grouped Data or discrete frequency distribution