Bivariate Data Review (Scatterplots, Regression, etc.)

represents the percentage of the data that is the closest to the line of best fit.

• R

• S

• X

• r²

An R² value of 0.81 or 81% would indicate the data fits the line poorly.

• True

• False

calculates how much the data points spread around the regression line

• Sx

• R

• R²

• S

Gives us a typical prediction error/residual

• Residual

• Standard deviation of the residuals

• Coefficient of determination

• Correlation

A correlation value of 0.3 indicates what type of correlation?

• Weak negative

• No correlation

• Strong positive

• Weak positive

Correlation is...

• R

• R²

• S

• Sx

Which of these strongly influence r?

• Clusters

• Regression line

• Exponanatory variables

• Outliers

Which of these is the regression equation for Desmos?

• y1~b+mx1

• y1~b+ax1

• y1~mx1+b

• y1~ax1+b

Tags

CCSS.8.EE.B.5

The exponatory variable is usually...

• x

• y

Tags

CCSS.6.EE.C.9

In this situation, what is the response variable? The relationship between car weight and car accident death rates

• Car weight

• Car accident death rate