Outliers/LSRL review

Select all high-leverage points from the given graph.

Tags

CCSS.HSS.ID.B.6

CCSS.HSF.IF.B.4

Which of the following points are considered outliers? Mark all that apply.

Tags

CCSS.8.SP.A.1

Which of the following points has the greatest absolute value residual?

Tags

CCSS.8.EE.C.8C

Which of the following points has the greatest influence over the slope of the regression line?

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.A.3

CCSS.HSS.ID.C.7

Suppose correlation between the size of a mammal and its life expectancy is 0.67. If an elephant has a z-score of 3.1 for size, what would we predict about its z-score for life expectancy?

• Its life expectancy would have a z-score of 0.67

• Its life expectancy would have a z-score of 3.67

• Its life expectancy would have a z-score of 2.08

• Its life expectancy would have a z-score 2.35

Tags

CCSS.HSS.ID.B.6A

A regression line is fit to a set of points that compare the heights(x) and weights(y) of several students in a Statistics class. Which of the following statements about that line must be true? Mark all that apply.

• The regression line must pass through the averages for both height and weight.

• The regression line must pass through (0,0).

• The regression line has a slope which is equal to the correlation coefficient.

• Approximately half the points will be above the line and the other half will be below the line.

Tags

CCSS.8.SP.A.2

During a science experiment, Daniel, Nora, and Emma plotted their results on a graph. Which of the following terms best describe the point representing Emma's result, which is farthest to the right on the graph? Mark all that apply.

• High Leverage

• Influential

• Outlier

Tags

CCSS.8.SP.A.1

Aiden, and Daniel are analyzing a data plot for their statistics project. They notice a point farthest to the right in the plot. Which of the following terms best describe this point? Mark all that apply.

• High Leverage

• Influential

• Outlier

Tags

CCSS.8.SP.A.1

Maya, Charlotte, and Michael are studying a graph of their city's annual rainfall. Which of the following terms best describe the point with the smallest y-value, representing the year with the least rainfall? Mark all that apply.

• High Leverage

• Influential

• Outlier

Tags

CCSS.8.SP.A.1

Evelyn, Samuel, and Liam are analyzing the correlation between the number of hours they spend playing video games and their reaction times. If the data point representing the longest gaming session (farthest to the right on the scatterplot) were removed, which of the following would be most influenced?

• Slope

• Y-intercept

• Correlation

Tags

CCSS.HSF-LE.A.1B