## Mean Absolute Deviation for ungrouped data

Use this calculator to find the variance and standard deviation for ungrouped (raw) data.

Mean Absolute Deviation Calculator
Enter the X Values (Separated by comma,)
Results
Number of Obs. (n):
Sample Mean : ($\overline{x}$)
Let $x_i, i=1,2, \cdots , n$ be $n$ observations then the mean of $X$ is denoted by $\overline{x}$ and is given by \begin{aligned} \overline{x}& =\frac{1}{n}\sum_{i=1}^{n}x_i. \end{aligned}
The mean absolute deviation about mean is denoted by MAD and is given by \begin{aligned} MAD & =\frac{1}{n}\sum_{i=1}^{n}|x_i -\overline{x}| \end{aligned}