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Mathematics, 05.07.2019 01:20 school4life110
the accompanying data were compiled by the admissions office of a certain college during the past 5 years. the data relate the number of college brochures and follow-up letters (x) sent to a preselected list of high school juniors who took the psat and the number of completed applications (y) received from these students (both measured in thousands).
brochures sent, x 1.6 2 3.1 4 5.4
applications completed, y 0.8 1 1.6 2 2.7
(a) derive an equation of the straight line that passes through the points (2, 1) and (4, 2).
y =
(b) use this equation to predict the number of completed applications that might be expected if 6400 brochures and follow-up letters are sent out during the next year.
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