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# probability

play
noun prob·a·bil·i·ty \ˌprä-bə-ˈbi-lə-tē\

## Simple Definition of probability

• : the chance that something will happen

• : something that has a chance of happening

• : a measure of how often a particular event will happen if something (such as tossing a coin) is done repeatedly

Source: Merriam-Webster's Learner's Dictionary

plural

## probabilities

1. 1 :  the quality or state of being probable

2. 2 :  something (as an event or circumstance) that is probable

3. 3 a (1) :  the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes (2) :  the chance that a given event will occur b :  a branch of mathematics concerned with the study of probabilities

4. 4 :  a logical relation between statements such that evidence confirming one confirms the other to some degree

## Examples of probability in a sentence

1. There is a low probability that you will be chosen.

2. There is some probability of rain tomorrow.

3. With the dark clouds moving in, rain seems more like a probability than a possibility.

4. The probability of a coin coming up heads is one out of every two tries.

15th Century

15th century

## probability

play
noun prob·a·bil·i·ty \ˌprä-bə-ˈbi-lə-tē\

plural

## probabilities

1. 1 :  the chance of happening <The probability of rain is low.>

2. 2 :  something likely <Rain is a probability.>

3. 3 :  a measure of how likely a given event is <The probability of a coin landing face up is 1⁄2.>

## Seen and Heard

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#### iota

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a very small amount

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