Variance of a grouped or continuous frequency distribution

Median of grouped or continuous frequency distribution

Mean Deviation of a Grouped or Continuous Frequency Distribution

The variance of the following continuous frequency distribution is

Computation of mode for a continuous frequency distribution - Method

Calculate the variance and standard deviation of the following continuous frequency distribution.

Calculate the variance and standard deviation of the following continuous frequency distribution.

Arithmetic mean of a continuous frequency distribution

Derive the median formula for 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