By Arthur H. Hall (auth.)

**Read or Download An Introduction to Statistics PDF**

**Best elementary books**

**Global Warming and Climate Change Demystified**

A non-heated dialogue on worldwide warming and weather changeInterested in attending to the middle of the explanations for the Earth's altering weather? wish a correct interpreting at the technology in the back of international warming? this is your gauge! This easy-to-follow consultant bargains a temperate view of this scorching subject. worldwide Warming & weather switch Demystified starts off by way of medical facts accrued from climate tools, satellite tv for pc telemetry, ice cores, and coral sections that show how the Earth's temperature is altering.

**Beginning Algebra: Connecting Concepts Through Applications**

Starting ALGEBRA: CONNECTING techniques via functions exhibits scholars the right way to practice conventional mathematical talents in real-world contexts. The emphasis on ability development and functions engages scholars as they grasp algebraic strategies, challenge fixing, and verbal exchange abilities. scholars how one can remedy difficulties generated from reasonable functions, rather than studying strategies with no conceptual realizing.

1,178 pages plus Appendixes of 146 pages

- Challenging Problems in Algebra (Dover Books on Mathematics)
- How Does One Cut a Triangle?
- Intermediate Arabic For Dummies
- The Universe in a Handkerchief: Lewis Carroll's Mathematical Recreations, Games, Puzzles, and Word Plays
- Elementary Calculus: An Infinitesimal Approach, Second Edition

**Additional resources for An Introduction to Statistics**

**Example text**

5 The difference is entirely due to the extremely large value of 100 in (b). Extreme values do not affect the mode or the median. EXERCISE 7 1. Find the mode of each of the following distributions (i) by accurate drawing and measurement, (ii) by calculation. (a) seconds No. 10-14 1 (b) millimetres No. 71/z-9 41 15-19 8 91/z-11 59 20-24 20 11 Vz-13 77 25-29 12 30-34 5 131/z-15 45 35-39 2 15-17 30 2. A customer survey on furniture revealed that 55 people spent amounts as shown in the table. Amount No.

Extreme values do not affect the mode or the median. EXERCISE 7 1. Find the mode of each of the following distributions (i) by accurate drawing and measurement, (ii) by calculation. (a) seconds No. 10-14 1 (b) millimetres No. 71/z-9 41 15-19 8 91/z-11 59 20-24 20 11 Vz-13 77 25-29 12 30-34 5 131/z-15 45 35-39 2 15-17 30 2. A customer survey on furniture revealed that 55 people spent amounts as shown in the table. Amount No. under £25 £25 and under £50 £50 , £75 £75 , £100 1 3 8 14 No. Amount £100 £125 £150 £200 and under £125 , £150 , £200 and over 11 10 7 1 Find the mode, the median and the two quartiles.

7. An investigation into horse racing provided the following figures at the end of a flat-racing season. Trainer No. of horses No. of wins B A 24 42 8 11 c 38 70 D 33 49 E 31 50 F 36 55 G 35 63 H 22 33 I 35 35 J 22 41 K 32 46 L 32 55 Plot the data using the x-axis for the number of horses and draw the regression line of wins on horses. Which trainers might consider they had done better than average? Find the regression equation and from it calculate the number of wins the trainer of 15 horses might have expected.