Inferences Based on Data from Random Samples

T.i.P.S.

Students should be able to make generalizations, predictions, and inferences about a larger population based on data collected from a random sample of that population.

Example

A local home builder surveyed a random sample of 50 customers in Round Rock to find out how they heard about the business. The results are graphed below.

If Round Rock has a population of 110,000 people, and the builder can only select one type of marketing campaign next year, which option should he choose? Why?

Hint
Possible Solution

TEKS

Supporting Standard 8.12 Measurement and data. The student applies mathematical process standards to use statistical representations to analyze data. The student is expected to:

(B) use data from a random sample to make inferences about a population

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