Branch of applied mathematics based on experimental observations from which we establish plausible hypotheses that allow for predictions about analogous circumstances.

### Examples

Consider the following observations of precipitation recorded during one week, in millimetres of rain:

E = {1, 4, 12, 8, 0, 7, 3}

The mean of this precipitation is: \(\overline{x}=\frac{1\space +\space 4\space +\space 12\space +\space 8\space +\space 0\space +\space 7\space +\space 3}{7}\) = \(\frac{35}{5}\) = 5.

Calculating the mean of a set of data is a statistical calculation.