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IB: Trasketball

Prepare for your upcoming quiz on least squares regression with a comprehensive overview of the concepts, including how to reduce equations to the "y = mx + b" form. We'll cover key data points such as Sx, Sy, and Sxy, as well as how to make predictions based on the regression line. You’ll also learn to identify the correlation coefficient (r-value) and its significance. With practical examples and significant figures conversion exercises, you'll be well-equipped to tackle your quiz confidently.

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IB: Trasketball

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  1. IB: Trasketball Y’all have a quiz on Monday.

  2. Below is the least squares regression. Reduce it down to the “y = mx +b” form.

  3. Below is the least squares regression. Reduce it down to the “y = mx +b” form.

  4. Below is the least squares regression. Reduce it down to the “y = mx +b” form.

  5. Below is the least squares regression. Reduce it down to the “y = mx +b” form.

  6. Find the Least Squares Regression line Given the following data: Sx =4.59 Sy =2.54 Sxy = 0.955 = 10.3 = 12.7

  7. Find the Least Squares Regression line Given the following table:

  8. Find the Least Squares Regression line Given the following data: Sx= 13.6 Sy =19.3 Sxy = 9.54 = 112 = 254

  9. Find the Least Squares Regression line Given the following table:

  10. Given the line, make a prediction for the y-value: The Least Squares Regression: X = 13.9

  11. Given the line, make a prediction for the y-value: Y = mx + b: y = 25.7x – 14.3 X = 4.2

  12. Given the line, make a prediction for the y-value: The Least Squares Regression: X = 5.44

  13. Given the line, make a prediction for the y-value: Y = mx + b: y = 32x + (-12.8) X = (-2.7)

  14. Identify the r-value from the graph:

  15. Identify the r-value from the graph: (An educated guess…)

  16. Identify the r-value from the data table:

  17. Identify the r-value from the graph: (An educated guess)

  18. Identify the r-value from the data table:

  19. Identify the r-value from the graph: (It doesn’t have to be exact, just an estimate)

  20. Change the following to three Significant Figures 10

  21. Change the following to three Significant Figures 50.178

  22. Change the following to three Significant Figures 0.067894

  23. Change the following to three Significant Figures 1.122657

  24. Change the following to three Significant Figures 16988.34

  25. Change the following to three Significant Figures 0.1333333

  26. Can we use a linear regression?

  27. Can we use a linear regression?

  28. Tell me about r = 0.878 Strength? Form? Direction?

  29. Tell me about r = -0.459 Strength? Form? Direction?

  30. Tell me about r = .777 Strength? Form? Direction?

  31. Tell me about r = 3.20 Strength? Form? Direction?

  32. Solve. =

  33. Solve. =

  34. Solve. =

  35. Solve. =

  36. Solve. =

  37. Solve. =

  38. Solve. =

  39. Solve. =

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