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AP STATS Linear Regression Classwork Answers

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Classwork Answers (1-5) 1.R 2 = 48.2% 2.Differences in fares explain 48.2% of the variability in distance. 3.b 1 =.0786 4.b 0 = 177.21 5.fare-hat = 177.21 + 0.0786 (distance)

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Classwork Answers (6-10) 6.The predicted fare for a 200-mile flight is $192.93 7.The predicted fare for a 2000-mile flight is $334.41. 8.I will explain… 9.The fare is $177.21 when the distance is zero. This is the base fare. 10.For each additional mile flown, the fare increases by $0.0786.

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Classwork Answers (11-13) 11.The residual is the actual fare minus the predicted fare. The actual fare is $212 and the predicted fare (y-hat) is $312.32. The residual is $-100.32. 12.A positive residual means that the actual fare is more than the predicted fare. 13.A negative residual means that the actual fare is less than the predicted fare.

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