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Back to 4.3 Fitting Linear Models to Data

2.4 Exercise 91

Avg difficulty 2.5

Based on the set of data given in the table, calculate the regression line using a calculator or other technology tool, and determine the correlation coefficient to three decimal places.

xx 10 12 15 18 20
yy 36 34 30 28 22

OpenStax Precalculus 2e, 2.4 Fitting Linear Models to Data, exercise 91

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.