STATISTICAL TECHNIQUES AND TOOLS
CORRELATION COEFFICIENT COEFFICIENT OF DETERMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which type of variation can be explained by the relationship between x and y?
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Explained Variation
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Unexplained Variation
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Total Variation
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Correlation Variation
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Explanation:
Detailed explanation-1: -The explained variation is the sum of the squared of the differences between each predicted y-value and the mean of y. The unexplained variation is the sum of the squared of the differences between the y-value of each ordered pair and each corresponding predicted y-value.
Detailed explanation-2: -Pearson r = 1. The proportion of Y variance explained by the linear relationship between X and Y = r2 = 1, or 100%.
There is 1 question to complete.