# What Is a Precision?

A precision is the capability of search engines to bring only appropriate information in the search results. It is basically a percentage that is calculated by the number of both relevant and irrelevant documents searched. Search engines don't know what you want exactly, therefore, they keep on guessing.
Ask.com Answer for: what is a precision
pre·ci·sion
[pri-sizh-uhn]
NOUN
1.
the state or quality of being precise.
2.
accuracy; exactness: to arrive at an estimate with precision.
3.
mechanical or scientific exactness: a lens ground with precision.
4.
punctiliousness; strictness: precision in one's business dealings.
5.
Mathematics the degree to which the correctness of a quantity is expressed.
Source: Dictionary.com
Precision is a term in mathematics and statistics that refers to the nearness of measurements to the true value or to each other. It may also refer to the number of digits from which the value is expressed.
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