Using GeoGebra to find the correlation coefficient of the data:
1. Enter the data points into GeoGebra, with the first column representing the independent variable and the second column representing the dependent variable:
(5, 22)
(6, 29)
(7, 28)
(8, 31)
(9, 37)
2. Click on the "List & Spreadsheet" tool in GeoGebra to create a scatter plot of the data points.
3. Right-click on the scatter plot and select "Fit Line" to add a linear regression line to the plot.
4. The correlation coefficient (r-value) will be displayed on the screen.
After following these steps, the correlation coefficient of the data is approximately 0.97.
Use technology (such as GeoGebra) to find the correlation coefficient of the data. Round your r-value to two decimal places, if necessary.
5 22
6 29
7 28
8 31
9 37
1 answer