Chapter 1: Introduction Flashcards
(9 cards)
1
Q
Statistics
A
- Set of procedures & rules for reducing large masses of data to manageable proportions & for allowing us to draw conclusions from those data
- Not always computational/ mathematical
2
Q
Descriptive Statistics
A
-Describing what the data has to say about some ambiguous point
3
Q
Population
A
- Entire collection of events in which you’re interested in
- -Usually more interested in larger populations
4
Q
Sample
A
-Set of actual observations; subset of a population
5
Q
Parameters
A
-Numerical values summarizing population data
6
Q
Random Sample
A
-Sample in which each member of the population has an equal chance of inclusion
7
Q
Decisiontree
A
-Graphical representation of decisions involved in the choice of statistical procedures
8
Q
Measurement Data
A
- Data obtained by measuring objects/ events
- -Ie. Weight
9
Q
Categorical Data
A
-Data representing counts or number of observations in each category ie. voting
