X-Bar in Statistics: Theory & Formula

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

x-bar represents the _____, used to represent mu, which is the _____.

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1. Which of the following is an example of a population parameter?

2. What are two charateristics of samples that allow researchers to rely on Laws of Probabiity to estimate a parameter?

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About This Quiz & Worksheet

Review the x-bar theory and formula with this worksheet and quiz. You will also find several questions that deal with samples on this quiz.

Quiz & Worksheet Goals

This quiz and worksheet are structured to help you assess your knowledge regarding:

  • What the x-bar represents
  • Sample statistics
  • Population parameters

Skills Practiced

You can look at this quiz as an opportunity to practice the following skills:

  • Information recall - access the knowledge you've gained regarding characteristics of samples
  • Interpreting information - verify that you can read information regarding which sampling techniques provide a random sample and interpret it correctly
  • Knowledge application - use your knowledge to answer a question about points plotted from sample means

Additional Learning

The lesson that accompanies this quiz, titled X-Bar is Statistics: Theory & Formula, will teach you more about this topic. The lesson includes information about the following subjects:

  • What statistics is
  • The central limit theorem
  • How the x-bar is calculated
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