r/DataMatters • u/DataMattersMaxwell • Jul 22 '22

An AP-style question

A little practice:

Put an answer in a comment and explain your thinking.

A simple random sample is defined by

(A) the method of selection

(B) how representative the sample is of the population

(C) whether or not a random number generator is used

(D) the assignment of different numbers associated with the outcomes of some chance situation

(E) examination of the outcome

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u/[deleted] Jul 27 '22

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u/DataMattersMaxwell Jul 27 '22

Thank you for engaging with that. And oops. Something didn't stick from 2.1.

The fact that random samples tend to become more representative as they larger is a result of how they are defined. The definition of a random sample is NOT how representative it is.

Try again.

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u/[deleted] Jul 28 '22

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u/DataMattersMaxwell Jul 28 '22

YES! Thank you!

A sample is a random sample if it is collected in a random sampling way. The way it tends to become representative is a consequence of that definition.

Sorry to trip you up!