Chapter 7 Sampling and Sampling Distributions
Solutions: 15. a. x = xi / n = $45,500 = $4,550 10 9, 068, 620 = $1003.80 10 1
18. a. b. c. d.
E ( x ) = = 200
x = / n = 50 / 100 = 5
Normal with E ( x )
Chapter 5 Discrete Probability Distributions
Solutions: 1. a. Head, Head (H,H) Head, Tail (H,T) Tail, Head (T,H) Tail, Tail (T,T) x = number of heads on two coin tosses Outcome (H,H) (H,T) (T,H) (T,T)
Descriptive Statistics: Tabular and Graphical Methods
Solutions: 2. a. b. c/d. Class A B C D Total 4. a. b. Show CSI ER Friends Raymond Total: Frequency 18 11 15 6 50 Percent Frequency 36% 22% 30% 12%
Chapter 1 Data and Statistics
Solutions: 5. a. 5 b. c. d. Price, CD capacity, and the number of tape decks are quantitative. Sound quality and FM tuning sensitivity and selectivity are qualitative. Av
Chapter 4 Introduction to Probability
Solutions: 4. a. 1st Toss 2nd Toss 3rd Toss H H T H T (H,H,T) (H,H,H)
7. 11. a.
Introduction to Probability No. Requirement (4.4) is not satisfied; the probabilit