Open with 7.2 Trends in the residuals. Shown below are two plots of residuals re
ID: 3276007 • Letter: O
Question
Open with 7.2 Trends in the residuals. Shown below are two plots of residuals remaining after fitting a linear model to two different sets of data. Deseribe important features and determine if a linear model would be appropriate for these data. Explain your reasoning. 7.3/ Identify relationships, Part I. For each of the six plots, identify the strength of the relationship (e.g. weak, moderate, or strong) in the data and whether fitting a linear model would be reasonable. 3 Page 356 1 436Q+ MacBook ProExplanation / Answer
(a) There is a strong relationship in the data as the points look like following a specific trend. The relationship is not linear as the point do not lie around a straight line.
(b) There is a strong relationship in the data as the points look like following a specific trend. The relationship is positive linear as the point lie around a upward sloping straight line.
(c) There is a weak relationship in the data as the points look like following a specific trend.
(d) There is a weak relationship in the data as the points look like almost following a specific trend. The relationship is not linear as the point do not lie around a straight line.
(e) There is a strong relationship in the data as the points look like following a specific trend. The relationship is negative linear as the point lie around a downward sloping straight line.
(f) There is a weak relationship in the data as the points look like following a specific trend.
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