Random Sampling

When a population is divided into groups with similar characteristics and a sample is randomly chosen from each group

• cluster sampling

• stratisfied sampling

• systematic sampling

• self-selected sampling

When you start with one member chosen at random then use a rule to select members of the sample

• Stratisfied Sampling

• Cluster Smapling

• Systematic Sampling

• Convenience Sampling

Only choosing subjects that are in close proximity or easy to get to

• Stratisfied Sampling

• Systematic Sampling

• Self-selected sampling

• Convenience Sampling

When a population is divided into convenient clusters and entire clusters are chosen at random as the sample

• Stratisfied Sampling

• Cluster Sampling

• Systematic Sampling

• Convenience Sampling

Using a sample made of volunteers

• Cluster Sampling

• Systematic Sampling

• Convenience Sampling

• Self-selected Sampling

Starting with a randomly chosen ID number, every fifth student ID number was chosen and that student was asked to fill out the survey

• Systematic Sampling

• Cluster Sampling

• Convenience Sampling

• Stratisfied Sampling

A retailer put feedback cards at the front of its store. They got responses from 22% of their customers.

• Convenience Sampling

• Self-selected sample

• Systematic Sampling

• Cluster Sampling

A city wants to know what percent of people in the city own a dog or a cat. A city worker goes door to door in the neighborhood around city hall to ask people about their pets.

• Systematic Sampling

• Self-Selected Sample

• Convenience Sample

• Cluster Sample

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

The population is grouped according to age and a random sample is chosen from each group

A number of hospitals around the country were randomly chosen. Within each hospital, all the nurses were chosen.

Tags

CCSS.HSS.IC.B.3