Common Core · High school
HSS-ID.A.1
High school — Represent data with plots on the real number line, including dot plots, histograms and box plots.
High school — Represent data with plots on the real number line: dot plots, histograms and box plots.
The 2 skills that cover it
- Range & SpreadMeasure how spread out a data set is with the range, the quartiles and the interquartile range, and use the spread to spot outliers.Read the lesson →
- Histograms, Box Plots & ShapeRead a dot plot, a histogram and a box plot, build the five-number summary a box plot is drawn from, describe the shape of a distribution as symmetric or skewed, and compare two distributions by centre and spread.Read the lesson →
What a student should be able to do
- Compute the range of a data set.
- Find the lower and upper quartiles of an ordered data set.
- Compute the interquartile range and say what it measures that the range does not.
- Test a value for outlier status with the 1.5 x IQR rule.
- Read counts and totals from a dot plot or a histogram.
- Find the five-number summary of a data set and read a box plot back into it.
- Describe the shape of a distribution and say which summary of centre suits it.
- Compare two distributions by their centres and their spreads.