Chapter 3 - Probability

Question 1

Random experiment

Answer 1

A process leading to two or more possible outcomes without knowing exactly which outcome will occur

Question 2

Basic outcomes

Answer 2

The possible outcomes for a random experiment

Question 3

Sample space

Answer 3

Set of all basic outcomes

Question 4

Event

Answer 4

Any subset of basic outcomes from the sample space

Question 5

Null event

Answer 5

Represents the absence of a basic outcome

Question 6

Intersection

Answer 6

The set of all outcomes in S that belong to both A and B

Occurs only if both A and B occur

Question 7

Joint probability

Answer 7

Used to denote the probability of the intersection of A and B

Question 8

Mutually exclusive

Answer 8

If the event A and B have no common outcomes

Their intersection is said to be the empty set

Question 9

Union

Answer 9

The set of all basic outcomes in S that belong to at least one of these two events

Union occurs if either A or B or both occur

Question 10

Complement

Answer 10

The set of basic outcomes of a random experiment belonging to S but not A

Question 11

Classical probability

Answer 11

The proportion of times that an event will occur, assuming that all outcomes in a sample space are equally likely to occur

Question 12

How to compute the number of combination of n items taken x at a time

Answer 12

Number of orderings

Permutations

Combinations