SupplementalExercisesChapter 1

# SupplementalExercisesChapter 1 - Vocabulary Supplemental...

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Vocabulary Supplemental Exercises Chapter 1 1. Statistics is a collection of methods for planning experiments, obtaining data, and then organizing, summarizing, presenting, analyzing, interpreting and drawing conclusions based on the data. 2. A population is the complete collection of all elements (scores, people, measurements, and so on) to be studied. The collection is complete in the sense that it includes all subjects to be studied. 3. A sample is a subcollection of elements selected from a population. Example: In a study of household incomes in a small town of 1000 households, one might conceivably obtain the income of every household. However, it is probably very expensive and time consuming to do this. Therefore, a better approach would be to obtain the data from a portion of the households (let’s say 125 households). In this scenario, the 1000 households are referred to as the population and the 125 households are referred to as a sample.

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## This note was uploaded on 12/11/2011 for the course STA 2122 taught by Professor Staff during the Fall '08 term at FIU.

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SupplementalExercisesChapter 1 - Vocabulary Supplemental...

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