To use this function, choose .

For any nonnegative number , the square root is the nonnegative number n such that . The square root can be represented by or .

For example, .

SQRT(number)

For number, specify the number or column of numbers. If you enter a negative number, Minitab returns a missing value.

Calculate expression | Result |
---|---|

SQRT(64) | 8 |

SQRT(0.25) | 0.5 |

The square root has many applications in statistics. For example:

- To estimate the standard deviation in regression, Minitab calculates the square root of the mean square of the error (MSE).
- To transform skewed data using the Box-Cox transformation (with lambda = 0.5), Minitab calculates the square root of the data values.
- To make a box or range plot width proportional to the sample size, Minitab makes the width of each box proportional to the square root of the number of observations in the box.