IB skill practice

Calculate descriptive statistics

Calculate and interpret mean, median, and range from small data sets with clear statistical reasoning.

Paper 1 5 marks Difficulty 1

Calculate mean, median, and range

A student records the following seven practice scores: \(38, 30, 26, 28, 22, 35, 31\). Calculate the mean \(\bar{x}\), the median \(M\), and the range.

Worked practice: descriptive statistics

Work from the ordered data: mean, median when requested, and range.