Flashcards in Round 2 Lecture 2 Deck (9)
- Frequency Tables
- Charts (pie, bar, etc.)
- Cross Tabs
- Descriptive Statistics
describe data sets or relationships between variables with one or a few numbers:
-What is the central value?
-How widely are values spread from the center? Are there -data that are very atypical?
-Are variables related?
The sum of the values for all observations of a variable divided by the number of observations.
The observation below which 50%of the observations fall.
The value that occurs most frequently.
The sum of the squared deviations from the mean divided by the number of observations minus one
Difference between the first and third quartiles of the distribution