Statistics Calculator

What this tool does

Calculate statistics using your data. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

How to use the Statistics Calculator

1. Enter or select numbers (comma or whitespace separated).
2. Read the calculated result; change any measurement to compare alternatives.

Formula

mean, median, mode, sample/population variance and SD, quartiles (linear interpolation), IQR, sum and count for one data set

data

Numbers (comma or whitespace separated)

All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Worked example

For statistics calculator, the following measurements illustrate the exact method: Numbers (comma or whitespace separated): 2,4,4,4,5,5,7,9.

Results explained

Mean

Mean from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Median

Median from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Mode

Mode from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Sample standard deviation

Sample standard deviation from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Population standard deviation

Population standard deviation from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Sample variance

Sample variance from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

First quartile (Q1)

First quartile (Q1) from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Third quartile (Q3)

Third quartile (Q3) from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Interquartile range (IQR)

Interquartile range (IQR) from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Range

Range from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Sum

Sum from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Count

Count from the formula above. All-in-one descriptive summary. Quartiles use linear interpolation on the sorted data (the type-7 method, as in Excel QUARTILE.INC and NumPy's default).

Frequently asked questions