SECTION 8.1 REAL NUMBERS
RATIONAL NUMBER (Q):
a number that can be expressed either as:
as a repeating decimal
a terminating decimal.
Note: The Rational Numbers include the Natural Numbers (N), the Whole Numbers (W), and the Integers
DISPLAYING DATA: PARTS 1 & 2
For many years, the word statistics referred to numerical information about state or political territories. The
word itself comes from the Latin statisticus, meaning of the state. We now live in an informa
MEASURES OF CENTRAL TENDENCY
In this section we will be doing some number crunching with data sets to help us to get a feel for
MEASURES OF CENTRAL TENDENCY
Where is the center of the data set?
Do the numbers tend
T102 Final Review
REVISED Fall 2007
This is only a sampling of some problems to review. All exams, notes, quizzes, homework, and reviews
should also be done.
1) Use < , > or = to write a true sentence:
2) Find a number between th
T102 SECTION 9-4
ODDS, CONDITIONAL PROBABILITY AND EXPECTED VALUE
You hear people speak about the odds in favor of something happening or the odds against
something happening all the time. What do these statements really mean?
If the odds in f
USING SIMULATIONS IN PROBABILITY
A simulation is a technique to act out a situation. It is a way to study a phenomenon too complex to
analyze by other means.
For instance, we can simulate tossing a coin 20 times using a variety of methods
T102 SECTION 6.3
MULTIPLICATION AND DIVISION OF RATIONAL NUMBERS
Models for Multiplication
But, what happens when both multiplicands are fractions? For example, three-fourths of the
SECTION 6.4 RATIOS, PROPORTIONS, & PROPORTIONAL
For any two rational numbers a and b, the ratio of a to b is the fraction
A ratio is a comparison of two quantities written as a rational number.
We can write ratios in three ways:
DECIMALS, PERCENTS, AND REAL NUMBERS
INTRODUCTION TO DECIMALS
In this section, we will explore relationships between fractions and decimals and see how decimals
are an extension of the base-ten number system. The word decimal co
OPERATIONS WITH DECIMALS
ADDITION AND SUBTRACTION OF DECIMALS
Before jumping directly to the standard algorithm for adding and subtracting
decimals, let us discover why the algorithm works with some concrete and other
T102 SECTION 7-3
Any rational number can be expressed as a decimal either terminating or repeating.
Given the rational number
in simplest form (reduced):
If the prime factorization of b contains only _s and/or _s the
HOW PROBABILITIES ARE DETERMINED
Probability, with its roots in gambling, is used in areas such as weather, sports, politics,
Probabilities are RATIOS expressed as fractions, decimals, or percents, and they ar
T102 SECTION 9.2
MULTISTAGE EXPERIMENTS WITH TREE
DIAGRAMS & GEOMETRIC PROBABILITIES
Tree Diagrams are visual depictions of experiments. We will first look at a tree diagram of a
ONE-STAGE EXPERIMENT that is, only one step.
EXAMPLE: A spinne
T102 CHAPTER 6
RATIONAL NUMBERS AS FRACTIONS
THE SET OF RATIONAL NUMBERS
In T101, we began by studying the Natural Numbers:
We then expanded this study to the Whole Numbers:
And then to the Integers: