For all your dictionary needs!
Tip. You can look up words, expressions, names, titles...

68–95–99.7 rule

Definition of the noun 68–95–99.7 rule

What does 68–95–99.7 rule mean as a name of something?


  1. [statistics] That a normal distribution has 68% of its observations within one standard deviation of the mean, 95% within two, and 99.7% within three.


68–95–99.7 rule: In statistics, the 68–95–99.7 rule, also known as the three-sigma rule or empirical rule, states that nearly all values lie within three standard deviations of the mean in a normal distribution.

  • also known as 68-95-99.7 rule

Printed encyclopedias and other books with definitions for 68–95–99.7 rule

Click on a title to look inside that book (if available):

Google previewEncyclopedia of Mathematics (2005)

by James Stuart Tanton

From the study of the NORMAL DISTRIBUTION, the 68–95–99.7 rule states that 95 percent of the measurements  ...

Online dictionaries and encyclopedias with entries for 68–95–99.7 rule

Click on a label to prioritize search results according to that topic:

Quotes about 68–95–99.7 rule

Rule A: Don't. Rule A1: Rule A doesn't exist. Rule A2: Do not discuss the existence or non-existence of Rules A, A1 or A2. (R.D. Laing)
more quotes...

Share this page

Privacy Policy | Cookies Policy
Keyword Tool | Romanian-English Dictionary