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Statistics · EDA

Mean and Standard Deviation — Compute and Interpret

A bar graph shows numbers as bars. Taller bar = bigger number.

StatisticsCommon Core SP-1.FEDAVerified correct ✓

Worked examples

Find the range of the data set: 17, 14, 4, 6, 9, 8, 2.
Answer: 15

Find the range of the data set: 13, 4, 16, 4, 5.
Answer: 12

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Standard Deviation and Variance Boxplots and the Five-Number Summary

More Statistics topics

Frequency Tables — Relative Frequency and Marginal Distributions Compare Distributions — Shape, Center, Spread, and Outliers (SOCS)Dot Plots and Histograms — Construct and Interpret Boxplots and the Five-Number Summary Standardized Scores (z-scores) — Position Within a Distribution Normal Distribution — The 68-95-99.7 Empirical Rule Normal Probability Calculations Using z-tables Find Values from Percentiles — Inverse Normal