If the data in a scatter diagram is scattered completely at random, what do you conclude?
A. There is no linear relationship between X and Y.
B. There is a strong linear relationship between X and Y.
C. There is a strong linear relationship between X and Y that is described by a horizontal (flat) line.
D. None of these choices.
Analysis:
A. Correct. If the data in a scatter diagram is scattered completely at random, there is no linear relationship between X and Y.
B. Incorrect. If the data in a scatter diagram is scattered completely at random, there is no linear relationship between X and Y.
C. Incorrect. If the data in a scatter diagram is scattered completely at random, there is no linear relationship between X and Y.
D. Incorrect. If the data in a scatter diagram is scattered completely at random, there is no linear relationship between X and Y.
ANSWER : A
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