Find the probability of two or more events that
occur in sequence using the multiplication
Independent vs. Dependent Events
Two events A and B are independent if the
fact that A occurs does not affect the
Review for Test #2
Chapters 4 & 5
1. If a regular die is rolled, what is the probability of rolling a 1 or a 6?
In a recent survey, it was found that 35% of households subscribe to a local newspaper. If 8
households are randomly selected,
Complements: The Probability
for At Least One
The multiplication rules can be used with the
rule for complements to simplify solving
probability problems involving at least one.
Complements: The Probability of At Least One
Discuss how to distinguish between discrete random
variables and continuous random variables.
A random variable is a variable (typically
represented by x) that has a single numerical value,
Binomial Probability Distributions
Find the exact probability for X successes in n trials of a
The Binomial Distribution
Many types of probability problems have only two possible
outcomes or they can be reduced to two ou
Find the probability of compound events using
the addition rules.
Many problems involve finding the probability of 2 or
Example: Suppose a person is selected at random
at a political gathering, what is
Basic Concepts of Probability
This section introduces the basic concept of the
probability of an event.
An event is any collection of results or outcomes of a
The sample space for a procedure consists of all
Name: _ Quiz #2
Math/Stat 231 15 pts Due: 9/27/2016
1. Three cards are drawn from an ordinary deck and not replaced. Find the
probability of getting all clubs.
2. Choose one of the 50 states at random. What is the probability that it does not
begin with t