HW1Solutions

HW1Solutions - 1 8 i x x s n 92.75 9.63 s 47. d. 2 ( ) 48...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
5E Fall 2010 Homework 1 Solutions Chapter 3: 11. Using the mean we get x city =15.58, highway x = 18.92 For the samples we see that the mean highway mileage is better than the mean city mileage. City 13.2 14.4 15.2 15.3 15.3 15.3 15.9 16 16.1 16.2 16.2 16.7 16.8 Median Mode: 15.3 Highway 17.2 17.4 18.3 18.5 18.6 18.6 18.7 19.0 19.2 19.4 19.4 20.6 21.1 Median Mode: 18.6, 19.4 The median and modal mileages are also better for highway driving. 19. a. Range = 60 - 28 = 32 IQR = Q 3 - Q 1 = 55 - 45 = 10 b. x 435 9 4833 . 2 ( ) 742 i x x 2 2 ( ) 742 92.75
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 8 i x x s n 92.75 9.63 s 47. d. 2 ( ) 48 2.45 1 9 1 i x x x s n 2 ( ) 136 4.12 1 9 1 i y y y s n 10 .99 2.45(4.12) xy xy x y s r s s xy r = +.99 shows a very strong positive linear relationship. 5E Fall 2010 Chapter 4: 28. Let: B = rented a car for business reasons P = rented a car for personal reasons a. P (B P) = P (B) + P (P) - P (B P) = .54 + .458 - .30 = .698 b. P (Neither) = 1 - .698 = .302...
View Full Document

This note was uploaded on 11/25/2010 for the course PSTAT PSTAT 5E taught by Professor Landrigan during the Fall '08 term at UCSB.

Page1 / 2

HW1Solutions - 1 8 i x x s n 92.75 9.63 s 47. d. 2 ( ) 48...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online