Stratified Sampling

Calculate the number of parts for C

• 11

• 3

• 30

• 12

Calculate the number of parts for D

• 11

• 7

• 6

• 12

Calculate for dark choc

• 50

• 66

• 130

• 33

Calculate for white choc

• 82

• 20

• 40

• 39

Which sampling method divides the population into subgroups and takes samples from each subgroup?

• Convenience sampling

• Cluster sampling

• Random sampling

• Stratified sampling

Sampling method that in which the population is divided into HOMOGENEOUS groups and SRS’s are pulled from each group.

• Stratified Sampling

• Simple Random Sampling (SRS)

• Cluster Sampling

• Systematic Sampling

This type of sampling is called what?

• Stratified

• Systematic

• Simple

• Quota

A teacher conducting research on a statistical intervention decided to divide her students into age groups and then select students from each group.

• Simple Random Sampling

• Systematic Random Sampling

• Stratified Random Sampling

• Cluster or Area Sampling

The teacher samples her class by randomly selecting 5 girls and then randomly selecting 7 boys.  This type of sampling is called?

• Stratified

• Systematic

• SRS

• Cluster

A researcher wants to ensure that both urban and rural populations are represented in a study about health behaviors. Which sampling method should the researcher use?

• Simple random sampling

• Stratified sampling

• Convenience sampling

• Quota sampling