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15 Cards in this Set
- Front
- Back
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What diagram shows every possible outcome of two events? |
A sample space diagram |
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What does it mean if two events are mutually exclusive? |
The can’t happen at the same time |
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What do the probabilities of mutually exclusive events always add up to? |
1 |
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How do you find out the total number of outcomes for events m and n? |
m x n |
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What is the equation for the expected number of outcomes? |
Number of trials x probability |
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What is the equation for relative frequency? |
Frequency ÷ total number of trials |
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As the number of experiments increases, what happens to the experimental and theoretical frequency? |
They become closer together |
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What diagram shows two or more events and their probability? |
A tree diagram |
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What are two independent events? |
If one happening doesn’t affect the other |
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How do you find the probability of two independent events? |
Multiply their probabilities, P(A and B) = P(A) x P(B) |
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What is a conditional probability? |
When one outcome affects the other |
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How do you work out the probability of a repeated independent event? |
You multiply it by itself |
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What does P(A∩B) mean? |
The probability of the intersection of A and B- all the elements in both A and B |
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What does P(AUB) mean? |
A union B- all the elements in A, B, or both |
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What does A’ mean? |
All the elements not in A |
