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Unit 3 Assignment 2: Linear Relationships
Question 1
Correlation coefficient =0.663. There exist a moderately strong positive liner relationship
between longevity and gestation. An increase in gestation period increases the longevity period.
Removing outlier decreases the correlation coefficient.
Question 2
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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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New correlation coefficient =0.519. The new correlation coefficient is lower 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 Question 1 A scatterplot of longevity and Gestation 45 40 Longevity 35 30 25 20 15 10 5 0 0 100 200 300 400 500 600 700 Gestation Correlation coefficient =0.663. There exist a moderately strong positive liner relationship between longevity and gestation. An 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 400 500 New correlation coefficient =0.519. The new correlation coefficient is lower 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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