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If we leave out the low outlier, the correlation for the remaining 13 points in the figure above is closest to

(a)−0.95.(b) −0.5.

(c)0. (d) 0.5 (e)0.95.

Short Answer

Expert verified

The correlation for the remaining 13points in the figure is closest to 0.5

Correct option is (d) 0.5

Step by step solution

01

Given information

Given in the question that, We have to find the correlation for the remaining 13points in the figure below If we leave out the low outlier .

02

Explanation

The scatterplot of reading test results against IQ test scores for 14 fifth-grade pupils is shown in the diagram. We can observe from the scatterplot that the point with an IQ of 124 and a reading of 10 is an anomaly. This point deviates from the general pattern. When this outlier is removed, the remaining 13 points shift from the bottom left to the upper right. That instance, if a child has a higher test score, he or she will also have a higher reading test score. This is referred to be a positive relationship between the two variables. The connection is linear in nature. That example, the general pattern runs from bottom left to higher right in a straight line. The bond between them is moderately strong. The correlation coefficient is 0.5.

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