Calculating Correlation & Regression
Practice computing Pearson's r and the regression line y = ax + b from raw data using your GDC — then use the line to make predictions.
Start practising → Formula sheet (PDF) ↗Sample questions
- Easy Calculate r from a table of bivariate data Calculator [4]
- Medium Find regression line and predict a value Calculator [5]
- Hard Full regression analysis with r, equation and prediction Calculator [7]
About this topic
These are original, exam-style questions written to match the IB Mathematics syllabus for Applications & Interpretation SL. 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.