Based on the scatter plot, it appears that a linear model best fits the data.
Using a linear model on the calculator, we find the equation to be:
y = 0.121x + 0.791
Substitute x = 17 into the equation:
y = 0.121(17) + 0.791
y = 2.997
Therefore, the expected GPA of a high school student who works 17 hours per week is approximately 3.00.
x= 19, 11, 11, 19, 18, 12, 10, 19, 8, 13, 8, 17, 6, 15, 11
y=2.9
2.6
1.9
1.5
1.5
3.3
3.1
1.1
3.1
3.7
3.2
2.6
3.9
2.3
2.9
Looking at the data table and observing a scatter plot on your calculator, what type of model best fits these data?
Quadratic
Linear
Logarithmic
Exponential
Use your calculator to fit an appropriate model to the data. Round values to three decimal places.
Using the equation you found, estimate the expected GPA of a high school student who works 17 hours per week. Round your answer to two decimal places.
1 answer