Correlation And Line Of Best Fit
Overview
When two quantities are plotted against each other, the pattern of points often tells a story: as one goes up, does the other go up, go down, or do neither? That pattern is correlation, and a line of best fit captures the trend.
In this lesson you will describe the correlation shown by a scatter plot as positive, negative or none, draw a line of best fit, and use it to make predictions.
Objectives
- Describe correlation (positive, negative or zero) from a scatter diagram and draw and use a line of best fit.
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Correlation And Line Of Best Fit. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Points trending upward from bottom left to top right show: A. negative correlation B. positive correlation C. no correlation D. causation Answer: B
- Points trending downward from top left to bottom right show: A. positive correlation B. negative correlation C. no correlation D. zero range Answer: B
- Scattered points with no clear pattern show: A. positive correlation B. negative correlation C. no correlation D. strong correlation Answer: C
- A line of best fit should have: A. all points above it B. all points below it C. roughly equal points above and below D. only two points on it Answer: C
- Correlation between two variables: A. always proves causation B. never exists C. does not by itself prove causation D. is the same as the range Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
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