sampling Flashcards
(3 cards)
1
Q
what is random sampling
A
- all members of target population are given a number
- numbers then picked using a random number generator
2
Q
what is stratified sampling
A
- population divided into groups and people selected at random
- number from each group is proportional to size of the group
3
Q
what is quota sampling
A
- people picked at random who fit into a certain category
- usually used for opinions