Lecture 7&8 Samples/Correlation Flashcards
1
Q
Strength of Iduction
A
dependent of the high probability of occurence
2
Q
Population
A
group of things
3
Q
Sample
A
subgroup of things in population
4
Q
inferential statistics
A
premises are claims on the sample
conclusion is a claim on population
{ ( ) —–> }
{ } population
( ) sample
–> inference
5
Q
Good Sample
A
large
representative—definitely unbiased
sample is biased if not representative
6
Q
Correlation
A
a measure of the degree to which 2 variables vary together
7
Q
Positive Correlation
A
2 things tend to go together
8
Q
Negative correlation
A
2 things vary inversley
9
Q
Correlation _______ Causation
A
IS NOT
