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For this data set, the least squares regression line is Y = 31.72 + 0.62X, where X represents the final exam score as a percent, and Y represents the predicted course grade as a percent. Using the given equation of the regression line, what is the predicted course grade of a student who earns 85% on the final exam?

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sqdancefan

Answer:

  84.42

Step-by-step explanation:

Put the given value where X is, and do the arithmetic.

  Y = 31.72 + 0.62(85) = 31.72 +52.7 = 84.42

The predicted course grade is 84.42.

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