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-<!--
-title: "Average or Mean"
-sidebar_label: "Average or Mean"
-custom_edit_url: https://github.com/netdata/netdata/edit/master/web/api/queries/average/README.md
-learn_status: "Published"
-learn_topic_type: "References"
-learn_rel_path: "Developers/Web/Api/Queries"
--->
-
-# Average or Mean
-
-> This query is available as `average` and `mean`.
-
-An average is a single number taken as representative of a list of numbers.
-
-It is calculated as:
-
-```
-average = sum(numbers) / count(numbers)
-```
-
-## how to use
-
-Use it in alerts like this:
-
-```
- alarm: my_alert
- on: my_chart
-lookup: average -1m unaligned of my_dimension
- warn: $this > 1000
-```
-
-`average` does not change the units. For example, if the chart units is `requests/sec`, the result
-will be again expressed in the same units.
-
-It can also be used in APIs and badges as `&group=average` in the URL.
-
-## Examples
-
-Examining last 1 minute `successful` web server responses:
-
-- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=min&after=-60&label=min)
-- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=average&after=-60&label=average&value_color=orange)
-- ![](https://registry.my-netdata.io/api/v1/badge.svg?chart=web_log_nginx.response_statuses&options=unaligned&dimensions=success&group=max&after=-60&label=max)
-
-## References
-
-- <https://en.wikipedia.org/wiki/Average>.
-
-