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Calculating Linear Regressions Using TI-83 Plus Calculator

Learn how to calculate linear regressions for temperature and atmospheric pressure data on the TI-83 Plus calculator. Follow step-by-step instructions and equations provided.

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Calculating Linear Regressions Using TI-83 Plus Calculator

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  1. Temperature 10 15 20 25 30 Atmospheric Pressure 1003 1005 1010 1011 1014 Calculating Linear Regressions (y = ax + b) on Calculators Correlation Coefficient: 0.982607368 • For TI-83 Plus: • Enter data in 2 lists • Exit lists and then press STAT • Move cursor twice to the right over “TESTS”. • Scroll down to “E:LinRegTTest…” and press enter. • Scroll down to “Calculate”. • Scroll to the end to find “r = …”

  2. Temperature 10 15 20 25 30 Atmospheric Pressure 1003 1005 1010 1011 1014 Calculating Linear Regressions (y = bx + a) on Calculators Equation of regression line: y = 0.56x + 997.4 • For TI-83 Plus: • Enter data in 2 lists • Exit lists and then press STAT • Move cursor once to the right over “CALC”. • Scroll down to “8:LinReg(a+bx)” and press enter twice. • A is the y-intercept and b is the slope of the regression line

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