Formulae: Unit 10

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  • Created by: annanolan
  • Created on: 02-01-17 09:48
How do you calculate probability?
number of successful outcomes / total number of possible outcomes
1 of 15
What is a sample space diagram?
A diagram that shows all the possible outcomes of two events
2 of 15
When are two events mutually exclusive?
If they can't happen at the same time
3 of 15
When events are mutually exclusive, what is the probability of A and B
P(A) + P(B)
4 of 15
What is the relative frequency of an outcome?
Experimental probability
5 of 15
How do you calculate the experimental probability of an outcome?
frequency of outcome / total number of trials
6 of 15
What is theoretical probability?
Probability calculated without doing an experiment
7 of 15
What is a frequency tree?
A diagram that shows two or more events and the number of times they occurred?
8 of 15
How do you find the probability of 2 events where one doesn't effect the other?
P(A and B) = P(A) x P(B)
9 of 15
what is conditional probability?
The probability of a dependent event, where the probability of the second outcome do ends on the first outcome
10 of 15
What does A ∩ B mean?
'A intersection B' - All the elements are in A and in B
11 of 15
What does A U B mean?
'A union B' - All elements are in A or B or both
12 of 15
What does A' mean?
All elements not in A
13 of 15
What does
All elements
14 of 15
What does P(A ∩ B | B) mean?
probability of A and B given B
15 of 15

Other cards in this set

Card 2

Front

What is a sample space diagram?

Back

A diagram that shows all the possible outcomes of two events

Card 3

Front

When are two events mutually exclusive?

Back

Preview of the front of card 3

Card 4

Front

When events are mutually exclusive, what is the probability of A and B

Back

Preview of the front of card 4

Card 5

Front

What is the relative frequency of an outcome?

Back

Preview of the front of card 5
View more cards

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