Module 3: Probability

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Last updated 1:26 AM on 5/21/26
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11 Terms

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Sample Space

All the possible outcomes from an experiment: S

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Event

The subset of a sample space/ the outcome you are tracking

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Sample Point

The outcome from a sample space

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Mutually Exclusive

Where two or more events cannot occur at the same time (e.g. rolling a 2 and a 4 at the same time with one dice - impossible)

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Complement (plus list its annotation)

  • anything else that is not the event (the thing you’re measuring)

  • is mutually exclusive

<ul><li><p>anything else that is not the event (the thing you’re measuring)</p></li><li><p>is <strong>mutually exclusive</strong></p></li></ul><p></p>
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What is considered complement

Mutually exclusive events that add up to 1 (100%)

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Empty Set

An event that has cannot have an outcome. It represents an , so its probability is zero

  • Symbol:

<p>An event that has cannot have an outcome. It represents an , so its probability is zero</p><ul><li><p>Symbol: </p></li></ul><p></p>
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Formula for Intersection (“AND”)

P(

  • use this formula when there is AND, BOTH, TOGETHER, SAME TIME

<p>P(</p><ul><li><p>use this formula when there is AND, BOTH, TOGETHER, SAME TIME </p></li></ul><p></p>
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Formula for Intersection (“OR”)

  • use this formula when there is OR, EITHER, or AT LEAST ONE

<p></p><ul><li><p>use this formula when there is OR, EITHER, or AT LEAST ONE</p></li></ul><p></p>
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What is the symbol for complement

A’c