Topic C: Summarizing a distribution that is skewed using the median and the interquartile range

Topic C includes lessons 12-16 and covers describing the center of a distribution using the median, describing variability using the interquartile range (IQR), summarizing a distribution using a box plot, more practice with box plots, and understanding box plots.

Calculating the median

Calculating the median: data displays

Interquartile range (IQR)

Interquartile range (IQR)

Constructing a box plot

Reading box plots

Reading box plots

Worked example: Creating a box plot (odd number of data points)

Worked example: Creating a box plot (even number of data points)

Creating box plots

Interpreting box plots

Interpreting quartiles