Worksheet

Slope of a fit line from r and the spreads

Grade 11 Math Worksheet

NameDate

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

  1. Read this first

    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.

  2. Luz's class compares practice minutes (x) with free throws made (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 = 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?

  8. 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?

  9. Slope b = 0.25; spread of x = 8; spread of y = 4. Jun's class compares miles from school (x) with bus ride 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 = 0.8; mean of x, x̄ = 20; spread of x = 5; mean of y, ȳ = 40; spread of y = 10.

  2. Luz's class compares practice minutes (x) with free throws made (y). The summary is in the table shown. What is the intercept a of the fit line?

    8

  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 = 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

  8. 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

  9. Slope b = 0.25; spread of x = 8; spread of y = 4. Jun's class compares miles from school (x) with bus ride minutes (y). The fit line and spreads are in the table shown. What is the correlation r?

    0.5

  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