A Researcher Is Interested in the Trunk Circumference of Trees

question 20

Multiple Choice

A researcher is interested in the trunk circumference of trees at a particular logging site. The trees are planted in perfect rows. So, the researcher determines that she needs to measure every 12^th tree to obtain her sample. She uses a random number generator to determine that she should start at the fifth tree and sample every 12^th tree after that. This is an example of what type of sampling?

• A) simple random sampling
• B) stratified random sampling
• C) systematic random sampling
• D) purposive sampling

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Definitions:

Societal Reasons

Factors influenced by the collective customs, laws, and institutions within a society that affect individuals and communities.

Family of Orientation

The family into which a person is born or adopted, shaping their early experiences and socialization.

Family of Procreation

The family unit one establishes by marrying and having or adopting children, as opposed to the family of origin into which one is born.

Lower-Middle Class

A socio-economic group situated above the working class and below the upper-middle class, often characterized by moderate income levels, job security, and some educational achievements.