# GCSE Maths Probability

• Created by: Sunset
• Created on: 01-11-13 16:01
What forms can a probability be given in?
Decimal, fraction or percentage
1 of 10
What is relative frequency?
It is a probability that is found through experiment
2 of 10
What is the OR rule?
P(A+B) = P(A) + P(B)
3 of 10
What are mutually exclusive events
Ones which cannot happen at the same time, such as tossing a coin and getting a head and a tails
4 of 10
Two events are mutually exhaustive. What do their probabilities total?
1
5 of 10
What is the AND rule?
P(A and B) = P(A) x P(B)
6 of 10
On a probability space diagram, what does each pair of branches have to equal?
1
7 of 10
The probability that you get heads when you throw a biased coin is 0.8. What is the probability that you get tails?
0.2
8 of 10
You roll a dice and throw a coin. They are not biased. What is the probability that you roll a 4 and throw tails?
1/12 (1/6 x 1/2)
9 of 10
The probability that you throw a 2 on a dice is 1/6. What is the probability that you do not throw a 2.
5/6
10 of 10

## Other cards in this set

### Card 2

#### Front

What is relative frequency?

#### Back

It is a probability that is found through experiment

### Card 3

#### Front

What is the OR rule?

#### Back ### Card 4

#### Front

What are mutually exclusive events

#### Back ### Card 5

#### Front

Two events are mutually exhaustive. What do their probabilities total?

#### Back 