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12 Cards in this Set
- Front
- Back
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Probability |
The likelihood of an event happening. Probability is calculated by dividing the number of occurrences of an event by the number of possible occurrences of that same event. |
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Factorial |
Expressed as ! or (fact), this is equal to the factorial number times all the numbers that are less than the number in question. For example, 4! = 4x3x2x1. |
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Combination |
The number of possibilities when order doesn't matter. |
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Permutation |
The number of possibilities when order does matter. |
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Boolean Operator |
An expression of logic, to include "and", "or", and "not". |
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And |
Possibility of multiple events happening together (multiply). |
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Or |
Possibility of one or another event happening (add). |
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Not |
Possibility of anything except a particular event happening (subtract). |
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Mutually Exclusive Events |
The probability of one event does not affect the other. Events are independent, so boolean operators can be used as above. |
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Non Mutually Exclusive Events |
The probability of one event does affect the other. You will need to subtract any overlap in events from the total after using the boolean operators above. |
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Probability WITH Replacement |
After selecting an item, it is put back. The odds are the same for selecting multiple items. |
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Probability WITHOUT Replacement |
After selecting an item, it is not put back, which changes the odds of drawing multiple items after the first. |
