Lessons for S.ID.A.3
Comparing box plotsPutting two boxes on the same scale to compare center, spread and skew.Lesson
Describing a distributionReporting shape, center, spread and unusual features together, in the words of the setting.Lesson
Interpreting a standard deviationSaying in the setting's own units how far a typical value sits from the mean.Lesson
Outliers and the 1.5 IQR ruleMarking as an outlier any value more than one and a half interquartile ranges beyond a quartile.Lesson
Mean, median and skew: choosing the centerThe long tail pulls the mean toward it while the median stays near the bulk of the data.Lesson
Mean as balance pointThe place on the number line where the distances above and the distances below cancel out.Lesson
Mode and bimodal dataThe most common value, and what it means when two separate values are both common.Lesson
Resistant and non resistant measuresA summary is resistant when a few extreme values barely move it.Lesson
Shape of a distributionSymmetric, skewed, uniform, bimodal, and which center to trust.Lesson
Printable Worksheets
Comparing box plots worksheet (PDF)Printable worksheet with answer keyPreview
Describing a distribution worksheet (PDF)Printable worksheet with answer keyPreview
Interpreting a standard deviation worksheet (PDF)Printable worksheet with answer keyPreview
Outliers and the 1.5 IQR rule worksheet (PDF)Printable worksheet with answer keyPreview
Mean, median and skew: choosing the center worksheet (PDF)Printable worksheet with answer keyPreview
Mean as balance point worksheet (PDF)Printable worksheet with answer keyPreview
Mode and bimodal data worksheet (PDF)Printable worksheet with answer keyPreview
Resistant and non resistant measures worksheet (PDF)Printable worksheet with answer keyPreview