Measurement, chance and data - Median as another central measure: 3.75

Dimension

Level

Progression Point

Measurement, chance and data

0.5

• Use of a die or similar device to determine the range of outcomes in a game

3.25

• Identification of mode and range for a set of data

3.75

• Identification of the median for a set of data

4.0 Standard

… Students calculate and interpret measures of centrality (mean, median, and mode) and data spread (range).

4.25

• Recognition of the mean value of a set of measurements as the best estimate, and that the range could represent the associated error

4.75

• Display and interpretation of dot plots, and stem and leaf plots, including reference to mean, median and mode as measures of centre

5.0 Standard

… Students calculate summary statistics for measures of centre (mean, median, mode) and spread (range, and mean absolute difference), and make simple inferences based on this data.

5.5

• display of data as a box plot including calculation of quartiles and inter-quartile range and the identification of outliers

6.0 Standard

… Students calculate summary statistics for centrality (mode, median and mean), spread (box plot, inter-quartile range, outliers) and association (by-eye estimation of the line of best fit from a scatter plot).