or complete) This Quiz: 15 pts possible The scatterplot provided shows the gesta

Question

or complete) This Quiz: 15 pts possible The scatterplot provided shows the gestations periods and life expectancies in the upper right comer of this scatterplot is for elephants, and the other point at the far gestations periods and life expectancies for several animal species. The plot contains two points that may be of concem. The point s right is for hippos. Complete parts a through d below oO Click here to view the scatterplot of animal gestation periods and life expectancies a) By removing one of these points, we could make the association appear to be stronger: Which point? Explain. O A. Removing hippos would make the association stronger, since hippos are more of a departure from the patterm. O B. Removing elephants would make the association stronger, since elephants are more of a departure from the pattern. Removing elephants would make the association stronger, since elephants are less of a departure fom the pattern. Removing hippos would make the association stronger, since hippos are less of a departure from the pattem O D. b) Would the slope of the line increase or decrease? OA Increase, because the point for the hippos is below the regression line B. Decrease, because the point for the hippos is below the regression line. O C. Increase, because the point for the hippos is above the regression line. O D. Decrease, because the point for the hippos is above the regression line. C) Should we just keep removing animals to increase the strength of the model? Explain. A. No. Only data points that are outiers should be removed. B. Yes. Only data points that strengthen the model should be kept. C. Yes. Data points that aren't similar to the mean values should be removed. D. No. All data points for a model should always be kept. Click to select your answer Anastasia G

Explanation / Answer

a) B

b)A

c) A

d)A

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