LINE FIT
Definition Of Line Fit
Line of fit is a line that is drawn through the data on a scatter plot to describe the trend of the data.
Video Examples: How to find the Line of Best Fit
Example of Line Fit
The graph shows the line of fit that describes the distance covered during various periods of time.
Solved Example on Line Fit
Ques: Use the scatter plot and the line of fit to predict the number of hours a student would have spent to get a score of 92.
Choices:
A. 30
B. 32
C. 27
D. 21
Correct Answer: C
Solution:
Step 1: Using the data and the line of fit on the graph, we learn that a student who got a score of 92 studied for 27 hours.
Quick Summary
- A line of fit represents the general trend in a scatter plot.
- It helps in predicting values based on the observed relationship.
🍎 Teacher Insights
Emphasize the visual aspect of drawing a line of fit and the importance of considering all data points. Use real-world examples to illustrate the concept.🎓 Prerequisites
- Scatter Plots
- Linear Equations
- Graphing
Check Your Knowledge
Q1: Using the line of fit on a scatter plot, predict the value of y when x=5, given the line passes through (0,2) and (10,12).
Frequently Asked Questions
Q: How do I draw a line of fit?
A: Draw a line that best represents the trend of the data points in the scatter plot, with roughly equal number of points above and below the line.
Q: Can a line of fit be used for prediction?
A: Yes, it can be used to predict values for points not explicitly given in the data.