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Find an equation of the least squares regression line based

A stat 200 instructor believes the average quiz score is a good predictor of final exam scores. A random sample of 10 students produced the following data where x is the average quiz score and y is the final exam score. Find an equation of the least squares regression line. Based on the equation from part a, what is the predicted final exam score if the average quiz score is 80?

Data:

X: 72,96,55,65,100,50,85,70,74,85. Y: 72,98,50,70,96,60,83,75,77,87

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