Statistics
Mean, median, mode; range and IQR; outliers; mean absolute deviation (NEW v9); variance and standard deviation (NEW v9 — formal).
5 worksheetsRead the explainer →
- 1Measures of Central TendencyCalculate mean, median, and mode and explain which best represents the data.adaptive
- 2Measures of Spread (Range, IQR)Calculate range and interquartile range (IQR = Q3 - Q1).adaptive
- 3Outliers and Their EffectIdentify outliers and explain how they affect mean and median.adaptive
- 4Mean Absolute DeviationCalculate the mean absolute deviation (MAD = Σ|xi - mean| / n).adaptive
- 5Variance and Standard DeviationCalculate variance (σ² = Σ(xi-mean)²/n) and standard deviation (σ = √variance).adaptive