Standard Deviation Example (continued)

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)
Standard Deviation Example (continued)

The first step in calculating the standard deviation is to calculate the mean, . In this case, = 10.

Now, subtract that mean from each of the data values, and then square those results:

    Table VII
    Urea Nitrogen Concentration in 5 Employees (mg/dL)
    Concentration (mg/dL)x-(x-)2
Use this total to calculate the standard deviation:

The standard deviation is about 2.23.