To Obtain Accurate Estimates of a Parameter, a Sample Should

question 11

Multiple Choice

To obtain accurate estimates of a parameter, a sample should be.

• A)inconsistent
• B)representative of the population
• C)simply selected
• D)non-representative of the population

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Definitions:

Random Variable

A variable whose values depend on outcomes of a random phenomenon. It can be discrete or continuous.

Standard Deviation

A metric that quantifies the spread or variation of a dataset in comparison to its average value.

Normal Model

A probability distribution that is symmetrical around the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Standard Deviation

A criterion for evaluating the extent of scattering or variation present in a dataset.