Based on the data from six students, the regression equation relating number of hours of preparation (x) and test score (y) is . The same data yield and What is the best predicted test score for a student who spent 4 hours preparing for the test

step-by-step explanation:

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-x represents miles per gallon

-y represents cargo weight

-vehicle traveled an average of 5.3 miles per gallon(x1) with load of 22 tons (y1)

- vehicle traveled an average of 6.3 miles per gallon( x2) with load of 18 tons( y2)

so, equation now becomes

so, option a) is correct