
Directions: Read carefully.
1. 
A scatter plot is shown in the coordinate plane.
Which of the following graphs most closely approximates a line of best fit for the data in this scatter plot? 



2. 
Which statement is true about the data in a scatter plot where the yvalues are decreasing as the xvalues are increasing?
Choose:



3. 
A scatter plot of data is shown at the right. Which association (correlation) best describes the data?
Choose:




4. 
The table below shows the relationship between total fat grams and the total calories in a selection of fast food sandwiches. This data can be modeled by the line y = 13x + 143, where x is the total fat in grams and y is the total calories.


Based upon the model equation, what is the best prediction of the total calories for a sandwich with 36 total grams of fat?
Choose:


5. 
The number of hours spent babysitting and the amount of money earned is plotted at the right. The line of best fit has the equation y = 1.2x + 2.
Which of the following statements can be considered a valid prediction based upon this data?



Choose:


6. 
A scatter plot of data is shown at the right. Which association (correlation) best describes the data?
Choose:




7. 
The table shows the number of grams of carbohydrates, x, and the number of calories, y, of six different foods. The line of best fit is
y = 14.1x + 5.8.
Using the equation, estimate the number of carbohydrates in a food containing 154 calories.
Choose:



8. 
A scatter plot of data is shown at the right. Which statement best describes the association between hours of sleep and test scores?
Choose:




9. 
Data is randomly collected from students regarding the number of hours they slept the night before a big test, and their scores on the test.
The scatter plot displays the data.
The line of best fit has the equation y = 3.2x + 64.4.
Which of the following statements best describes what the slope and yintercept of the equation represent?



Choose:


10. 
Which equation best models this set of data?
Choose:




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