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Stratified Sampling (A) WORKSHEET

Suitable for Grades: 7th Grade, Geometry

CCSS: 7.SP.A.1, HSS.IC.A.1

CCSS Description: Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences.

Understand statistics as a process for making inferences about population parameters based on a random sample from that population.

Stratified Sampling (A) WORKSHEET DESCRIPTION

Section A provides two tables of data and the size of the total sample required, so that learners can calculate the size of each strata. Section B provides some similar tables but with other some strata sizes given, but other missing information to be found. Use this worksheet alongside Sample Bias and Stratified Sampling (B).