Math Problem Statement
Solution
Let's start by interpreting the question from the image.
We have a point that represents actual data on a scatterplot. The equation of the line of best fit predicts that when , .
Now, the residual is the difference between the actual value and the predicted value from the line of best fit. We can calculate it as follows:
Given:
- Actual
- Estimated
So:
The residual for the point is .
The estimated value from the line of best fit for is , as given in the problem.
Would you like a further explanation of residuals or other related topics?
Here are some related questions:
- What does the residual tell us about the accuracy of the line of best fit?
- How do you calculate the residual for different points on the scatterplot?
- What is the significance of residuals in regression analysis?
- What other methods can be used to measure the fit of a regression line?
- How does the size of the residual affect the overall regression model?
Tip: Residuals help assess the quality of a regression model. Smaller residuals indicate a better fit.
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Math Problem Analysis
Mathematical Concepts
Scatterplots
Residuals in regression
Line of best fit
Formulas
Residual = Actual y - Estimated y
Theorems
Concept of residuals in regression analysis
Suitable Grade Level
Grades 8-10