Sample Class definitions

# Definition Sets
1 unlimited for ex. rockefeller earned $23 million/year 2 sets
2 less than $600 per year 2 sets
3 $1,000 to $3,000 per year 2 sets
4 "sampling bias occurs when some population characteristics are over-or underrepresented in the sampel because of particular features of the method of selecting the sample"* p. 114, 1 set
5 a group whose properties are known 1 set
6 true 1 set