We can infer that there is a strong relationship between two numerical variables when:
A) the points on a scatterplot cluster tightly around an upward sloping straight line
B) the points on a scatterplot cluster tightly around a downward sloping straight line
C) both of these choices
D) neither of these choices
Correct Answer:
Verified
Q5: Correlation is a single-number summary of a
Q11: If the standard deviations of X and
Q27: The limitation of covariance as a descriptive
Q30: A line or curve superimposed on a
Q31: Scatterplots are also referred to as:
A) crosstabs
B)
Q33: We study relationships among numerical variables using:
A)
Q34: Which correlation coefficient suggests the strongest relationship?
A)
Q35: If the correlation of variables is close
Q36: Correlation is useful only for:
A) assessing the
Q37: Correlation and covariance measure:
A) the strength of
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