Statistics - Probability Flashcards Preview

A Level - Maths > Statistics - Probability > Flashcards

Flashcards in Statistics - Probability Deck (11):
1

What is a sample space?

Set of all possible outcomes

2

What is an event?

Collection of outcomes

3

What is an experiment?

A repeatable process that gives rise to a number of outcomes

4

What is a Venn diagram?

Represents events graphically
Frequencies/probabilities are represented

5

What is A and B in a Venn diagram?

A intersection B

6

What is A or B in a Venn diagram?

A union B

7

What are mutually exclusive events?

When events have no outcomes in common
Venn diagram circles don't overlap

8

What are independent events?

When events have no effect on another
Probability of A is the same whether or not B occurs

9

What is the equation for mutually exclusive events?

P(A or B) = P(A) + P(B)

10

What is the equation for independent events?

P(A and B) = P(A) x P(B)

11

What is a tree diagram?

Shows outcomes of two or more events happening in succession