Chapter 5/2 Probability (AS and A-Level) Flashcards
1
Q
What is an Experiment?
A
A repeatable process that gives a rise to a number of outcomes
2
Q
What is an Event?
A
A set of one or more of these incomes
3
Q
What is a sample space?
A
The set of all possible outcomes
4
Q
A ∩ B
A
5
Q
A ∪ B
A
6
Q
A’
A
7
Q
A ∩ B’
A
8
Q
If A and B are mutually exclusive then..
A
- P (A ∩ B) = 0
- P (A ∪ B) = P(A) + P(B)
9
Q
Mutually Exclusive on a venn diagram
A
10
Q
If A and B are independent then…
A
- P (A ∩ B) = P(A) x P(B)
- P(A|B) = P(A)
11
Q
A ∩ B (ABC Venn Diagram)
A
12
Q
A ∪ B (ABC Venn Diagram)
A
13
Q
A ∩ B ∩ C (ABC Venn Diagram)
A
14
Q
A ∩ C’ (ABC Venn Diagram)
A
15
Q
A ∩ B ∩ C’ (ABC Venn Diagram)
A
16
Q
(A ∪ B ∪ C)’ (ABC Venn Diagram)
A
17
Q
A’ (ABC Venn Diagram)
A
18
Q
A ∩ (B ∩ C)’ (ABC Venn Diagram)
A
19
Q
A ∩ B’ ∩ C’ (ABC Venn Diagram)
A
20
Q
A ∩ (B ∪ C)’ (ABC Venn Diagram)
A
21
Q
Given that A|B Formula
A
P(B|A) = P(A ∩ B) / P(B)
22
Q
What is the Additional Law P(A ∪ B)?
A
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
23
Q
A
