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WeBWork : MATH220_4101 x u.edu/webwork2/MATH220 4101 4W1_SM22/FinalExam/6/?effectiveUser=williafg&user=williafg&key=xocwit10Yx9eggFOo1aw8TVI6YWMaF65 Cj AM S Previous Problem List Next (List all answers as decimals, NOT percentages, and do NOT round any answers.) In a professor's Religion course the correlation between the students' scores prior to the final examination and their final examination scores is 0.16. Let a be the pre-exam score, and y be the final exam score. The least squares regression line is found to be y - 1.37 / 1.12 x, based on a random sample of 57 students. (a) For each increase in one point in the pre-exam score, by how many points does the student's final exam score tend to increase? answer = (b) Predict the final exam score for a new student who scores 7 1 on the pre-exam answer = (c) Determine the fraction of the variation of the final exam scores that can be explained by the least squares regression on the pre-exam scores. answer = Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times You have 2 attempts remaining. Email instructor