NCVPS Math 1 Unit 4 Lesson 2 Residuals

What should a residual plot look like if the data is linear?

• Distinct Pattern

• Curve

• Random

Shown is a residual plot. Would a linear regression model of the data be most appropriate?

• YES
• NO

Tags

CCSS.HSS.ID.A.3

After performing analyses on a set of data, Mrs. Schoeneck examined the scatter plot of the residual values for each analysis. Which scatter plot indicated the best linear fit for the data?

• A
• B
• C

Tags

CCSS.HSS.ID.B.6

Shown is a residual plot. Would a linear regression model of the data be most appropriate?

• YES
• NO

Tags

CCSS.HSS.ID.B.6

Which sentence describes the relationship shown on this scatterplot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• No correlation

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Which equation do you use to calculate the residual?

• predicted - observed

• run / rise

• observed - predicted

What type of correlation does this scatter plot show?

• positive correlation

• negative correlation

• no correlaton

Estimate the correlation coefficient (or the r-value).

• r = 0.8

• r = -0.5

• r = 0.5