IB: Trasketball

Y’all have a quiz on Monday.

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

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

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

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

Find the Least Squares Regression line

Given the following data:

Sx =4.59

Sy =2.54

Sxy = 0.955

= 10.3 = 12.7

Find the Least Squares Regression line

Given the following table:

Find the Least Squares Regression line

Given the following data:

Sx = 13.6

Sy = 19.3

Sxy = 9.54

= 112 = 254

Find the Least Squares Regression line

Given the following table:

Given the line, make a prediction for the y-value:

The Least Squares Regression:

X = 13.9

Given the line, make a prediction for the y-value:

Y = mx + b:

y = 25.7x – 14.3

X = 4.2

Given the line, make a prediction for the y-value:

The Least Squares Regression:

X = 5.44

Given the line, make a prediction for the y-value:

Y = mx + b:

y = 32x + (-12.8)

X = (-2.7)

Identify the r-value from the graph:

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

Identify the r-value from the data table:

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

Identify the r-value from the data table:

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

Change the following to three Significant Figures

10

Change the following to three Significant Figures

50.178

Change the following to three Significant Figures

0.067894

Change the following to three Significant Figures

1.122657

Change the following to three Significant Figures

16988.34

Change the following to three Significant Figures

0.1333333

Can we use a linear regression?

X 16 18 21 21 13 22 19Y 12 7 6 7 20 3 8

Can we use a linear regression?

Tell me about r = 0.878

Strength?

Form?

Direction?

Tell me about r = -0.459

Strength?

Form?

Direction?

Tell me about r = .777

Strength?

Form?

Direction?

Tell me about r = 3.20

Strength?

Form?

Direction?

Solve.

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Solve.

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Solve.

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Solve.

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Solve.

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Solve.

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Solve.

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Solve.

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