Predicting in Data Analysis Worksheet
Grade 8 Math worksheet on predicting trends and making inferences from scatter plots and lines of best fit.
Includes
Standards
Topics
Predicting in Data Analysis
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show your work where applicable. For questions involving graphs, use the provided coordinate plane.
1. What type of correlation is shown in a scatter plot where the points generally go up from left to right?
Negative correlation
Positive correlation
No correlation
Linear correlation
2. A line of best fit is used to describe the between two variables in a scatter plot.
3. Explain the difference between interpolation and extrapolation when making predictions from a line of best fit.
4. The scatter plot below shows the number of hours students spent studying for a test and their scores. Draw a line of best fit and use it to predict the score of a student who studied for 7 hours.
Predicted Score:
5. A strong correlation always implies causation.
True
False
6. A local ice cream shop recorded its daily sales and the average daily temperature for two weeks. If there is a positive correlation between temperature and sales, what would you predict about sales on a very hot day?
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