1 / 4

AP STATS

AP STATS. Linear Regression Classwork Answers. Classwork Answers (1-5). R 2 = 48.2% Differences in fares explain 48.2% of the variability in distance. b 1 = .0786 b 0 = 177.21 fare-hat = 177.21 + 0.0786 (distance). Classwork Answers (6-10).

ismail
Télécharger la présentation

AP STATS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AP STATS Linear Regression Classwork Answers

  2. Classwork Answers (1-5) • R2 = 48.2% • Differences in fares explain 48.2% of the variability in distance. • b1 = .0786 • b0 = 177.21 • fare-hat = 177.21 + 0.0786 (distance)

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

  4. Classwork Answers (11-13) • 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. • A positive residual means that the actual fare is more than the predicted fare. • A negative residual means that the actual fare is less than the predicted fare.

More Related