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12.2 Exercise 14

Avg difficulty 2.5

The table below represents the relationship between SAT scores on the math portion of the test and high school grade point averages (GPAs).

Use the median–-median line approach to find the equation for the line of best fit.

x (SAT math scores) y (GPAs)
624 90
544 86
363 70
373 71
350 65
741 98
262 60
587 87
327 62
364 67
261 50

OpenStax Statistics, 12.2 The Regression Equation, exercise 14

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Adapted from Statistics © 2022 Rice University. Licensed under CC BY 4.0. Source: Statistics. Imported at revision 7dea80a.