Weighted Average Calculator: Mean, Spread, and Standard Deviation from Weighted or Repeated Values
Calculate the average and spread of weighted data by entering raw values or frequency-expanded repeated values. Use the results with mean, variance, standard deviation, standard error, count, min, max, and range for quick statistics checks.
12 values
Instant Math
Use when your data represents a subset of a larger population. Applies Bessel's correction.
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Input your numbers into the Standard Deviation Calculator panel to see real-time statistics, variance, and normal distribution charts.