68-95-99 Rule Illustrated

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 148 CE courses, most popular
$95Add to cart
Pick Your Courses
Up to 8 CE hours
$50Add to cart
Individual course$20Add to cart
Need multiple seats for your university or lab? Get a quote
The page below is a sample from the LabCE course Descriptive Statistics. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Descriptive Statistics (online CE course)
68-95-99 Rule Illustrated

The following image illustrates the 68-95-99 rule. 68% of the area of the normal curve lies in the region of m ± 1 s, meaning 68% of data points chosen from this distribution will have values of m ± 1 s. Similarly, 95% of the area is within m ± 2 s, and 99% of the area is within m ± 3 s.