5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data...
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Transcript of 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data...
![Page 1: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/1.jpg)
5-7: Scatter Plots5-7: Scatter Plots
& Lines of Best Fit & Lines of Best Fit
![Page 2: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/2.jpg)
What is a scatter plot?What is a scatter plot?
A graph in which two sets of data are plotted as ordered pairs
When looking at the graph you can see the relationship between the two variables.
A graph in which two sets of data are plotted as ordered pairs
When looking at the graph you can see the relationship between the two variables.
![Page 3: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/3.jpg)
When we look at relationships of x and y…
When we look at relationships of x and y…
There are 3 possibilitiesPositive Correlation Negative CorrelationNo Correlation
There are 3 possibilitiesPositive Correlation Negative CorrelationNo Correlation
![Page 4: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/4.jpg)
Positive Correlation Positive Correlation
As x increases, y increases Has a positive slope.
As x increases, y increases Has a positive slope.
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![Page 5: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/5.jpg)
Negative Correlation Negative Correlation
As x increases, y decreases Has a negative slope.
As x increases, y decreases Has a negative slope.
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![Page 6: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/6.jpg)
NO Correlation NO Correlation
No relationship between x and y. No relationship between x and y.
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![Page 7: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/7.jpg)
Lines of Best FitLines of Best Fit
A line which describes the trend of the data.
You will determine the line of best fit, by sketching a line which passes through as many points as possible.
A line which describes the trend of the data.
You will determine the line of best fit, by sketching a line which passes through as many points as possible.
QuickTime™ and a decompressor
are needed to see this picture.
![Page 8: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/8.jpg)
Finding Equations of Lines of Best Fit
Finding Equations of Lines of Best Fit
1) Plot the data
2) Sketch a line of best fit, passing through as many points as possible.
3) Choose 2 points on your line and find the equation of the line.
a) find the slope
b) Write the equation of the line in slope intercept form. (y = mx + b)
1) Plot the data
2) Sketch a line of best fit, passing through as many points as possible.
3) Choose 2 points on your line and find the equation of the line.
a) find the slope
b) Write the equation of the line in slope intercept form. (y = mx + b)
![Page 9: 5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot? A graph in which two sets of data are plotted as ordered pairs When looking at the.](https://reader036.fdocuments.net/reader036/viewer/2022082413/56649d0e5503460f949e4235/html5/thumbnails/9.jpg)
Let’s Do It!Let’s Do It!
Close your laptop and plot the data on
the notesheet.
Close your laptop and plot the data on
the notesheet.