ScholarMatic: Explanation & Answer
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x 1 5 11 16 26 36
y 39 47 73 100 150 200
?x = 95, ?y = 609, ?x2 = 2375, ?y2 = 81,559, ?x y = 13,777, and r ? 0.997.
Find , and . Then find the equation of the least-squares line = a + b x. (For each answer, enter a number. Round your answers for and to two decimal places. Round your answers for a and b to three decimal places.)
Find the value of the coefficient of determination r2. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (For each answer, enter a number. Round your answer for r2 to three decimal places. Round your answers for the percentages to one decimal place.)
r2 =?
The calves you want to buy are 15 weeks old. What does the least-squares line predict for a healthy weight (in kg)? (Enter a number. Round your answer to two decimal places.)
hey yall can somone explain this type of question i have tons to do tonight just like it!
Thanks 🙂
ScholarMatic: Explanation & Answer
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