4 calculators in this category
- Mean, Median, Mode & Range CalculatorDescriptive statistics (measures of central tendency)Paste a list of numbers and this calculator returns the four summary figures every statistics course starts with: the mean, the…
- Standard Deviation Calculator (Sample & Population)Descriptive statistics (Bessel-corrected sample standard deviation)This calculator returns both standard deviations from the same data: the sample value s , which divides the sum of squared…
- Variance Calculator (Sample & Population)Descriptive statistics (Bessel-corrected sample variance)This calculator returns the sample variance s 2 and the population variance sigma 2 from the same list of numbers, together…
- Weighted Average (Weighted Mean) CalculatorWeighted arithmetic meanEnter your values in one box and their weights in the other and this calculator returns the weighted mean, the total weight…
Which one do you need?
- Mean, Median, Mode & Range Calculator
- Find the mean, median, mode and range of any data set. Paste your numbers or a frequency table and see every step of the arithmetic worked out.
- Standard Deviation Calculator (Sample & Population)
- Calculate sample (n-1) and population standard deviation from raw data, with the full deviation table, sum of squares, mean and every step shown.
- Variance Calculator (Sample & Population)
- Compute sample and population variance from raw data using the sum-of-squares shortcut, with SS, degrees of freedom and every intermediate total shown.
- Weighted Average (Weighted Mean) Calculator
- Calculate a weighted mean from values and weights, with normalised weight percentages, each item's contribution, and the simple average for comparison.