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For a group of English students at the local junior college, the scatter diagram

ID: 3351833 • Letter: F

Question

For a group of English students at the local junior college, the scatter diagram compares the number of correct answers on a test they took(y) and the length of the pencil used to take the test (x). State whether there is no correlation, a positive correlation, or a negative correlation between the x and y variables. If there is a correlation, state whether it is most likely due to coincidence, a common underlying cause, or a direct cause.

O A. Positive correlation; direct cause O B. Negative correlation; coincidence O C. No correlation 0 D. Positive correlation: coincidence Click to select your answer.

Explanation / Answer

Option C is correct.
There is no correlation because the data points in the scatter plot are randomly dispersed. There is no increasing/decreasing pattern to signify positive/negative correlation.

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