Download Empirical Rule

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Degrees of freedom (statistics) wikipedia , lookup

Bootstrapping (statistics) wikipedia , lookup

Taylor's law wikipedia , lookup

Regression toward the mean wikipedia , lookup

Transcript
11
Z-Scores are unit-free
• Values expressed in Z scores can be
compared, regardless of their original units.
o For example, suppose you had exam grades for 100
students in Psych 281 and also knew how many hours
each student studied for that exam.
o You could compare any student’s Z-score for their grade
with the Z-score for their # of hours of studying.
Lecture 3