This preview shows page 1. Sign up to view the full content.
Unformatted text preview: The scores on a test have mean = 50 points and SD = 10 points . The vast majority of the scores must lie between 30 and 70 points. Lets say that the realistic range of the data set is 70 30 = 40 points . The idea is that few of the scores will be less than 30 points or greater than 70 points. In general, Realistic range 4 . As a result, we obtain: Range Rule of Thumb for Estimating Realistic range 4...
View Full Document
This note was uploaded on 12/29/2011 for the course MATH 119 taught by Professor Kim during the Fall '09 term at SUNY Stony Brook.
- Fall '09
- Empirical Rule