# Statistics category for Dimensional inspection

In the upper part of the Run inspection page, tap Statistics to displayed the statistics parameters related to the measured tvalues.

The following parameters are shown:

- Samples: it is the number of acquired results.

- Minimum: it is the minimum value between the results of the Inspection.

- Maximum: it is the maximum value between the results of the Inspection.

- Range: it is the range value according to ISO norm.

- Average: it is the average value of the results of the Inspection.

- STD (σ): it is the standard deviation (indicated with the Greek letter “Sigma”) of the results of the Inspection.

- 3σ/X: it is the value of the “3 sigma percentage” parameter (3 times the standard deviation) over the average value according to ISO norm.

- X-3σ: it is the value of the “mean minus 3 times the standard deviation (sigma)” parameter according to ISO norm.

- X+3σ: it is the value of the “mean plus 3 times the standard deviation (sigma)” parameter according to ISO norm.

- Cp: it is the Cp value according to ISO norm.

- Cpk: it is the Cpk value according to ISO norm.

- OK: it is the percentage value of the results between minimum and maximum limit.

- Low: it is the percentage value of the results under the minimum limit.

- High: it is the percentage value of the results over the maximum limit.

## Applies to: