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Multiple Choice
Which scatterplot description best represents no linear correlation between and ?
A
Points cluster tightly around a line that slopes downward from left to right.
B
Points form a roughly circular cloud with no clear upward or downward trend as increases.
C
Points follow a strong curved (U-shaped) pattern as increases.
D
Points cluster tightly around a line that slopes upward from left to right.
Verified step by step guidance
1
Understand that linear correlation measures the strength and direction of a straight-line relationship between two variables, \(x\) and \(y\).
Recognize that a strong positive linear correlation means points cluster tightly around a line that slopes upward from left to right, indicating \(y\) increases as \(x\) increases.
Recognize that a strong negative linear correlation means points cluster tightly around a line that slopes downward from left to right, indicating \(y\) decreases as \(x\) increases.
Identify that no linear correlation means there is no clear linear pattern; the points do not cluster around any line with a positive or negative slope.
Therefore, the scatterplot that best represents no linear correlation is the one where points form a roughly circular cloud with no clear upward or downward trend as \(x\) increases.