Chapter 12
Example 12.1 (p. 417)
In 2003, the first year Company ABC was listed on the JSE, shares in the company sold at an
average price of 83c per share and a total of 810 shares changed hands. During 2006 a total
of 780 shares changed hands at an aver
CHAPTER 4
Basic Probability
Example 4.1 (p. 108)
Experiment
Sample space
Some possible events
Toss a coin once
S = cfw_Heads , Tails
A = Heads
B = Tails
Toss a coin twice
(H=heads, T=tails)
S = cfw_HH , HT , TH , TT
E = TH
F = HH or TT
G = HH or HT or TT
Chapter 15
Elementary Interest Calculations
Chapter Objectives
To introduce the principles of simple interest
To demonstrate how to determine the interest rate, amount invested, anount
due and interest rate for various simple interest problems
To introduc
Chapter 12
Chapter Objectives
To demonstrate how to deflate a price or value series
To demonstrate rates of change for consecutive periods of less than one year
To demonstrate rates of change for consecutive periods of more than one year
To demonstrate ho
CHAPTER 3
Measures of Location and Dispersion
Example 3.1
1.
The following data give the number of computer terminals
produced per day at a certain company, for a sample of nine days:
24
32
27
23
35
33
29
21
23
Calculate the (a) mean, (b) median & (c) mod
CHAPTER 5
Probability Distributions
Example 5.1
The following are examples of discrete random variables.
1. The owner of a computer store owner wants to know the number of defective microcomputers in a batch
of four.
X = number of defective microcomputers
CHAPTER 2
Organisation and Description of Data
Chapter Objectives
To demonstrate how to organise qualitative data
To develop tables and charts for qualitative data
To develop graphs for bivariate data
To demonstrate how to organise quantitative data
To de
CHAPTER 4
Basic Probability
1
Example 4.1 (p. 108)
Experiment
Toss a coin
once
Toss a coin
twice
(H=heads,
T=tails)
Some possible
events
Sample space
S = cfw_Heads , Tails
A = Heads
B = Tails
S = cfw_HH , HT , TH , E = TH
TT
F = HH or TT
G = HH or HT or
T
CHAPTER 1
Introduction to Statistics
Chapter Objectives
To understand what Statistics is and how it is related to data
To describe and discuss the statistical research process
To introduce the basic concepts of Statistics
To introduce methods of sample se
5
Discrete probability distributions
5.1 Discrete random variables
A variable is a characteristic under study that assumes different values for different
elements of the sample or population. For example, the profits of companies is a
variable. The profit