What can be said of the correlation between the brand of an automobile and its q
ID: 3222953 • Letter: W
Question
What can be said of the correlation between the brand of an automobile and its quality? The correlation is negative because smaller cars tend to have higher quality, and larger cars tend to have lower quality. The correlation is positive because better brands have higher quality. If correlation is negative an arithmetic mistake was made. Correlation must be positive. Correlation makes no sense here because "brand" is a categorical variable. For each menu item at a fast food restaurant, fat content (in grams) and number of calories were recorded. A scatter plot of these data is given. A plausible value for the correlation between fat content and number of calories is: +0.22 -09 +0.9 -1.0Explanation / Answer
Answer - 14: Correlation makes no sense because brand is a categorical variable.
Option D is correct.
Answer - 15: A possible value for the correlation is: + 0.9
Option C is correct.
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