Descriptive statistics practice
A tutor records these seven practice results: \(16, 28, 31, 24, 40, 9, 20\). Calculate the mean \(\bar{x}\), median \(M\), and range, then interpret what they show.
Worked practice: descriptive statistics
Work from the ordered data: mean, median when requested, and range.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.