Worksheet

Slope of a fit line from r and the spreads

Grade 11 Math Worksheet

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Circle the best answer, or write your answer on the line.

  1. Read this first

    Summary table (example data), statistic and value

    r = 0.5; mean of x, x̄ = 7; spread of x = 2; mean of y, ȳ = 20; spread of y = 6.

  2. Milo's class compares sunlight hours (x) with bean plant height (y). The summary is in the table shown. What is the intercept a of the fit line?

  3. Summary table (example data), statistic and value

    r = -0.6; mean of x, x̄ = 50; spread of x = 10; mean of y, ȳ = 30; spread of y = 6.

  4. Noah's class compares temperature in °F (x) with ice melt minutes (y). The summary is in the table shown. What is the intercept a of the fit line?

  5. Summary table (example data), statistic and value

    r = 0.75; mean of x, x̄ = 12; spread of x = 4; mean of y, ȳ = 25; spread of y = 8.

  6. Pia's class compares miles from school (x) with bus ride minutes (y). The summary is in the table shown. What is the intercept a of the fit line?

  7. Slope b = 1.5; spread of x = 4; spread of y = 10. Tala's class compares practice minutes (x) with free throws made (y). The fit line and spreads are in the table shown. What is the correlation r?

  8. Slope b = 0.4; spread of x = 5; spread of y = 2.5. Zee's class compares sunlight hours (x) with bean plant height (y). The fit line and spreads are in the table shown. What is the correlation r?

  9. Slope b = -3; spread of x = 2; spread of y = 10. Esme's class compares temperature in °F (x) with ice melt minutes (y). The fit line and spreads are in the table shown. What is the correlation r?

  10. Summary table (example data), statistic and value

    r = 0.8; mean of x, x̄ = 20; spread of x = 5; mean of y, ȳ = 40; spread of y = 10.

  11. Kira's class compares practice minutes (x) with free throws made (y). The summary is in the table shown. What does the fit line predict for x = 30?

  12. Summary table (example data), statistic and value

    r = 0.5; mean of x, x̄ = 6; spread of x = 2; mean of y, ȳ = 20; spread of y = 6.

  13. Luz's class compares sunlight hours (x) with bean plant height (y). The summary is in the table shown. What does the fit line predict for x = 10?

  14. Summary table (example data), statistic and value

    r = -0.6; mean of x, x̄ = 50; spread of x = 10; mean of y, ȳ = 30; spread of y = 6.

  15. Milo's class compares temperature in °F (x) with ice melt minutes (y). The summary is in the table shown. What does the fit line predict for x = 60?

  16. Summary table (example data), statistic and value

    r = 0.75; mean of x, x̄ = 12; spread of x = 4; mean of y, ȳ = 25; spread of y = 8.

  17. Noah's class compares miles from school (x) with bus ride minutes (y). The summary is in the table shown. What does the fit line predict for x = 4?

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Slope of a fit line from r and the spreads

Answer Key - Grade 11 Math Worksheet

Circle the best answer, or write your answer on the line.

  1. Read this first

    Summary table (example data), statistic and value

    r = 0.5; mean of x, x̄ = 7; spread of x = 2; mean of y, ȳ = 20; spread of y = 6.

  2. Milo's class compares sunlight hours (x) with bean plant height (y). The summary is in the table shown. What is the intercept a of the fit line?

    9.5

  3. Summary table (example data), statistic and value

    r = -0.6; mean of x, x̄ = 50; spread of x = 10; mean of y, ȳ = 30; spread of y = 6.

  4. Noah's class compares temperature in °F (x) with ice melt minutes (y). The summary is in the table shown. What is the intercept a of the fit line?

    48

  5. Summary table (example data), statistic and value

    r = 0.75; mean of x, x̄ = 12; spread of x = 4; mean of y, ȳ = 25; spread of y = 8.

  6. Pia's class compares miles from school (x) with bus ride minutes (y). The summary is in the table shown. What is the intercept a of the fit line?

    7

  7. Slope b = 1.5; spread of x = 4; spread of y = 10. Tala's class compares practice minutes (x) with free throws made (y). The fit line and spreads are in the table shown. What is the correlation r?

    0.6

  8. Slope b = 0.4; spread of x = 5; spread of y = 2.5. Zee's class compares sunlight hours (x) with bean plant height (y). The fit line and spreads are in the table shown. What is the correlation r?

    0.8

  9. Slope b = -3; spread of x = 2; spread of y = 10. Esme's class compares temperature in °F (x) with ice melt minutes (y). The fit line and spreads are in the table shown. What is the correlation r?

    -0.6

  10. Summary table (example data), statistic and value

    r = 0.8; mean of x, x̄ = 20; spread of x = 5; mean of y, ȳ = 40; spread of y = 10.

  11. Kira's class compares practice minutes (x) with free throws made (y). The summary is in the table shown. What does the fit line predict for x = 30?

    56

  12. Summary table (example data), statistic and value

    r = 0.5; mean of x, x̄ = 6; spread of x = 2; mean of y, ȳ = 20; spread of y = 6.

  13. Luz's class compares sunlight hours (x) with bean plant height (y). The summary is in the table shown. What does the fit line predict for x = 10?

    26

  14. Summary table (example data), statistic and value

    r = -0.6; mean of x, x̄ = 50; spread of x = 10; mean of y, ȳ = 30; spread of y = 6.

  15. Milo's class compares temperature in °F (x) with ice melt minutes (y). The summary is in the table shown. What does the fit line predict for x = 60?

    26.4

  16. Summary table (example data), statistic and value

    r = 0.75; mean of x, x̄ = 12; spread of x = 4; mean of y, ȳ = 25; spread of y = 8.

  17. Noah's class compares miles from school (x) with bus ride minutes (y). The summary is in the table shown. What does the fit line predict for x = 4?

    13