To find the correlation coefficient using technology like GeoGebra, you can follow these steps:
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Input Data: Enter the data points into GeoGebra. For this dataset:
- (2.3, 19)
- (3.1, 28)
- (4.5, 33)
- (6.6, 82)
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Calculating Correlation Coefficient: After entering the data points, you can use GeoGebra's built-in commands to calculate the correlation coefficient, which is usually represented by \( r \).
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Interpreting Results: GeoGebra will provide the correlation coefficient value.
Since I can't directly access GeoGebra to perform these steps, based on your options, it appears the potential correct answer for the correlation coefficient is \( 0.95 \).
Hence, the rounded value for the correlation coefficient you were looking for is:
0.95.