keyword

3 sigma standard deviation

Monthly search volume and cost-per-click data for "3 sigma standard deviation" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=3+sigma+standard+deviation&country=us" +--------------+------------------+ | volume | 1,600 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-16 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
3 sigma	1,600	$0	20/20
three sigma rule	390	$0	12/20
3 sigma rules	210	$0	13/20
3 sigma calculation	170	$0	15/20
calculating 3 sigma	170	$0	12/20
mean 3 sigma	40	$0	15/20
3 sigma value	40	$0	14/20
3 sigma definition	40	$0	13/20
standard deviation 3 sigma	30	$0	16/20
three sigma standard deviation	30	$0	15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=3+sigma+standard+deviation&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt