Ap Stats Ch.12- Types Of Sample Design

Front 1

SIMPLE RANDOM SAMPLE (SRS)

Back 1

GIVES EVERY INDIVIDUAL AN EQUAL CHANCE TO BE CHOSEN

Front 2

STRATIFIED RANDOM SAMPLE

Back 2

1. DIVIDES INDIVIDUALS INTO GROUPS OF SIMILAR INVIDIUALS CALLED STRATA
2. CHOOSES A SEPARETE SRS WITH IN EACH STRATUM AND COMBINES TO FORM THE FULL SAMPLE

Front 3

CLUSTER SAMPLING

Back 3

ENTIRE GROUPS ARE CHOSEN AT RANDOM; EACH CLUSTER SHOULD BE HETEREGENOUSE, SO ALL THE CLUSTERS ARE SIMLIAR TO ONE ANOTHER

Front 4

SYSTEMATIC RANDOM SAMPLING

Back 4

SELECT EVERY nTH INDIVIDUAL FROM THE SAMPLING FRAME. THE FIRST INVIDIDUAL SELECTED IS CHOSEN AT RANDOM

Front 5

MULTISAGE SAMPLE DESIGN

Back 5

SELECT SUCCESSIVELY SMALLER GROUPS WITH IN THE POPULATION IN STAGES. EACH STAGE MAY USE DIFFERENT SAMPLING DESIGNS.