College Statistics Chapter 5 Vocabulary

if an event cannot occur, its probability is _______

0

the probability of an event can be any number between and including ______ and _______

0, 1

the sum of the probabilities of the events in the sample space is _______

1

the frequency of an event occurs divided by total number of possible outcomes

classical probability

a joining or merging of different parts or qualities in which the component elements are individually distinct

combination

The _______ of an event B is the probability that the event will occur given the knowledge that an event A has already occurred

conditional probability

two events are _______ if the occurrence or nonoccurrence of one changes the probability that the other will occur

dependent

can be thought of as the most accurate scientific "guess" based on the results of experiments to collect data about an event

empirical probability

an event and its complement can occur at the same time (true or false)

false

classical probability uses a frequency distribution to compute probabilities (true or false)

false

if two events are dependent, they must have the same probability of occurring (true or false)

false

subjective probability has little use in the real world (true or false)

false

when objects are arranged in a specific order, the arrangement is called a combination (true or false)

false

when two events are not mutually exclusive, P(A or B) = P(A)+P(B) (true or false)

false

two events are _______ if the occurrence or nonoccurrence of one does not change the probability that the other will occur

independent

three major methods of probability

intuition, relative frequency, equally likely outcomes

A principle of probability and statistics which states that as a sample size grows, its mean will get closer and closer to the average of the whole population

law of large numbers

when two events cannot occur at the same time, they are said to be _______

mutually exclusive

a way, especially one of several possible variations, in which a set or number of things can be ordered or arranged

permutation

the likelihood of something happening or being the case

probability

the set of all possible outcomes of a probability experiment is called the _______

sample space

in classical probability, all outcomes in the sample space are equally likely (true or false)

true

the arrangement ABC is the same as BAC for combinations (true or false)

true