Stratified Random Sampling Is a Method of Selecting a Sample

question 61

Multiple Choice

Stratified random sampling is a method of selecting a sample in which

• A)the sample is first divided into strata, and then random samples are taken from each stratum
• B)various strata are selected from the sample
• C)the population is first divided into strata, and then random samples are drawn from each stratum
• D)None of these alternatives is correct.

Identify correct comma usage in complex sentences.

Understand the chronological development of life on Earth, including key events across different eons, eras, and periods.

Identify and describe geological and biological methods for dating fossils and events in Earth's history.

Interpret the significance of sedimentary strata in understanding Earth's past.

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Definitions:

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