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Unit 3 Assignment 2: Linear Relationships
Number 1
The correlation coefficient is 0.663. A moderately strong positive linear relationship exists
between longevity and gestation. A unit increase in gestation period increases the longevity
period. Removing outlier decreases the correlation coefficient.
Question 2
The new correlation coefficient is 0.519.
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Longevity
Gestation
A scatterplot of longevity and Gestation
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Lonegvity
Gestation
A scatterplot of longevity and Gestation
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The new correlation coefficient is less than the correlation coefficient in question 1. The outlier
was influential point far from the estimated regression model on the upper side. Therefore,
inclusion of the outlier point increases correlation coefficient value.

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Unit 3 Assignment 2: Linear Relationships Number 1 A scatterplot of longevity and Gestation 50 Longevity 40 30 20 10 0 0 100 200 300 400 Gestation 500 600 700 The correlation coefficient is 0.663. A moderately strong positive linear relationship exists between longevity and gestation. A unit increase in gestation period increases the longevity period. Removing outlier decreases the correlation coefficient. Question 2 A scatterplot of longevity and Gestation 30 Lonegvity 25 20 15 10 5 0 0 100 200 300 Gestation The new correlation coefficient is 0.519. 400 500 The new correlation coefficient is less than the correlation coefficient in question 1. The outlier was influential point far from the estimated regression model on the upper side. Therefore, inclusion of the outlier point increases correlation coefficient value. Name: Description: ...
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