Select the Sample Most Representative of the Population of Interest

question 13

Multiple Choice

Select the sample most representative of the population of interest
-The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias.

• A) A randomly selected group of 10 book sellers
• B) A randomly selected group of 30 junior high students
• C) A randomly selected group of 30 junior high students leaving the public library
• D) The group of 30 junior high students attending the birthday party of the researcher's child

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Definitions:

Variance

A statistical measure of the dispersion or spread in a set of data points, showing how far each number in the set is from the mean.

Coefficient Of Correlation

A statistical measure that calculates the strength of the relationship between the relative movements of two variables, represented typically by the Pearson correlation coefficient value.

Stocks

Shares in the ownership of a company, representing a claim on the company's assets and earnings.

Composed

Pertains to being made up of several parts or elements.