Math Tools

StatisticsCalculator

Calculate descriptive statistics. Find mean, median, mode, range, standard deviation, and variance for your data set.

Statistical Analysis

Statistical Summary

Mean (Average)22.43
Median22

Full Statistics

Count (n)7
Sum157
ModeNone
Range23
Standard Deviation8.08
Variance65.29

Definitions

  • Mean: Average of all values
  • Median: Middle value
  • Mode: Most frequent value
  • Range: Max - Min

When to Use

  • Sample: Subset of population
  • Population: All data points
  • Sample uses n-1 (Bessel's)
  • More accurate estimate

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