Chapter 2
“Typical” or Average scores
Connecting Variables and “Typical” Scores
Calculating the Mean
A suggestion...
Median= the Middle score
Mode= Most Frequent
Spread of Distribution
Range
Variance = SD ?
Variance Example: Try this!
Example Calculated-- Did you get this?
Standard Deviation
Z-scores
Z-scores…what do they mean?
Z score formula
Example of Z Scores
Another example
Quantitative vs. Qualitative Data
Summary of Ch 2
Home Page: http://www.mtholyoke.edu/courses/bpackard/stats/