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- 1. Multiple ChoiceWhat should a residual plot look like?Distinct PatternCurveRandom
- 2. Multiple ChoiceHow do you calculate a residual?Observed - PredictedPredicted - Observed
- 3. Multiple ChoiceResiduals are . . .possible models not explored by the researchervariation in the response variable that is explained by the modelthe difference between the observed response and the values predicted by the modeldata collected from individuals that is not consistent with the rest of the group
- 4. Multiple Choice
Shown is a residual plot. Would a linear regression model of the data be most appropriate?YESNO - 5. Multiple ChoiceAfter 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?ABC
- 6. Multiple ChoiceShown is a residual plot. Would a linear regression model of the data be most appropriate?YESNO
- 7. Multiple ChoiceEstimate the correlation coefficient.r = -0.8r = -0.5r = 0.5r = 0.8
- 8. Multiple ChoiceEstimate the correlation coefficient for this scatterplot.r = 1.2r = 0.89r = 0r = -0.89
- 9. Multiple ChoiceThe correlation coefficient r is a value between0 and 10 and 100-1 and 1-2 and 2
- 10. Multiple ChoiceWhat type of correlation exists between the number of people that go to the pool and the temperature outside.positivenegativeno correlationunknown
- 11. Multiple ChoiceWhat type of correlation exists between the temperature outside and the number of hot chocolate sold at a football game.positivenegativeno correlationunknown
- 12. Multiple ChoiceAs study time _______________, errors _______________.increases ; decreaseincreases ; increasedecreases; decreaseincreases ; stays the same
- 13. Multiple ChoiceIf the actual y value is 10 , and the residual is 7, what is the predicted value?171073
- 14. Multiple ChoiceA positive residual means...that the predicted value is too bigthat the predicted value is too smallthat the x value is too bigthat the x value is too small
- 15. Multiple ChoiceA negative residual means...that the predicted value is too bigthat the predicted value is too smallthat the x value is too bigthat the x value is too small
- 16. Multiple Choice
Find the residual of x = 4
-1
1
3
-3
- 17. Multiple ChoiceWhat is a line of best fit used for?To make predictionsTo make the graph look prettyTo connect the points
- 18. Multiple Choice
What is the residual when x=17
0
1
-2
2
- 19. Multiple Choice
which value of x has the greatest residual?
5
2
1
3
- 20. Multiple ChoiceDescribe the correlation in the graph shown.Strong NegativeStrong PositiveWeak NegativeWeak Positive
- Answer choicesTagsAnswer choicesTags