PART III

This sample consists of units of the population that are easily accessible.

• Cluster
• Convenience
• Volunteer
• Observational

Every possible group of units of the required size has the same chance of being the selected sample as any other sample of the same size.

• Simple Random 
• Thoughtful
• Typical
• Proportional

Units of the population are ordered in some fashion.  Usually, every k-th unit is chosen.

• proportional
• probable
• stratified
• systematic

Units of the population are grouped; one or more groups are selected at random.  All units of that group are included in the sample.

• cluster sample
• simple random
• stratified
• proportional

Cluster, stratified, simple random, systematic, and proportional are all types of 

• convenience samples
• biased samples
• haphazard samples
• unbiased samples

Identify the sampling design: School admin conducted a survey on post-graduation plans.  Students of senior class 2018 were listed in order by class rank.  The school selected a random number between 1 and 15, obtaining a number 11.  Then, they selected every 11th student for the survey.

• cluster
• volunteer
• systematic
• simple random

Identify the sampling design: Mr. Rhoades asks Mr. May, his neighbor, who his favorite America's Got Talent contestant is

• cluster
• unbiased
• stratified
• convenience

     It is also known as the lottery technique wherein all numbers will be placed on a bowl and will be thoroughly shuffled or mixed.

•    Simple Random Sampling

    

• Stratified Sampling

• Cluster Sampling

• Multistage Sampling

Describes a sample.

• Parameter

• Simple Random Technique

• Statistic

• Multistage Sampling

The population is divided into groups or strata, based on some characteristic. Then, within each group, a sample is selected.

• Simple Random Sampling.

• Parameter

• Statistic

• Stratified Sampling