February 5, 2008 Lecture Notes

# February 5, 2008 Lecture Notes - February 5 2008...

This preview shows pages 1–2. Sign up to view the full content.

February 5, 2008 Differential Statistics -  used to summarize, organize, and simplify data Ex: mean, median, standard deviation, range Inferential Statistics-  used to make generalizations from samples to population Population: set of all people of interest for a study Sample: set of people selected from the population Central Tendency-   - Find a single value that is most “representative” of the entire distribution of  scores - Mean, median, mode Learning the Variables-  practice on p 24-27, 30-32 - X, y variables or values - Σ = Sigma = summation - Σ X odes not equal  Σ X Σ Y - ( Σ X) 2  does not equal  Σ X 2 o Mean-   the arithmetic average = Sum of all scores / total number of scores (N) - M is the sample mean (x bar) - μ  = Population mean “mu” - Sample mean:  M =  Σ X/N - Population mean:  μ Σ

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

February 5, 2008 Lecture Notes - February 5 2008...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online