Calculating Correlation & Regression
Practice computing Pearson's r and regression line coefficients from raw data and summary statistics — including both y on x and x on y lines.
Start practising → Formula sheet (PDF) ↗Sample questions
- Easy Calculate r using GDC from a table of data Calculator [4]
- Medium Find both regression lines and make a prediction Calculator [6]
- Hard Calculate r and regression coefficients from summary statistics No Calculator [7]
About this topic
These are original, exam-style questions written to match the IB Mathematics syllabus for Analysis & Approaches HL. Every question comes with a full step-by-step worked solution showing the method, with mark allocations matching real IB marking schemes.
How to practise
- Open the question bank using the button above.
- Attempt the question, writing out your working.
- Reveal the full worked solution and compare your method step by step.
- Use the difficulty and calculator filters to focus on what you need most.