Sampling & Populations Basic Vocabulary Statistics Quiz
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Questions and Answers

What is the branch of math that deals with collecting, organizing, interpreting, and presenting data?

  • Algebra
  • Statistics (correct)
  • Geometry
  • Calculus

    • Which term refers to a method of gathering information about a specific group of items or individuals?

  • Hypothesis
  • Experiment
  • Analysis
  • Survey (correct)

    • What is defined as the collection of all data of interest?

  • Sample
  • Inference
  • Population (correct)
  • Statistics

    • In statistics, what term refers to a part of the population being studied?

    <p>Sample</p> Signup and view all the answers

    What is an unbiased sample in statistics?

    <p>A sample that is selected at random and is large enough to provide accurate data</p> Signup and view all the answers

    What introduces bias in a sample in statistics?

    <p>The way in which the data are collected from the sample</p> Signup and view all the answers

    In Example 1, why is the sample biased?

    <p>It only includes students from one class</p> Signup and view all the answers

    In Example 2, why is the sample unbiased?

    <p>The birds were randomly selected and tagged</p> Signup and view all the answers

    In Example 3, which sample would be unbiased for a survey of different colors of leaves seen in September?

    <p>50 fallen leaves and 50 leaves on branches</p> Signup and view all the answers

    In Example 4, why is the sample unbiased for estimating the number of 9th grade students that walk home right after school in the spring time?

    <p>Every fifth student from an alphabetical list of the 9th graders</p> Signup and view all the answers

    What classification is given to the survey method in Example 1?

    <p>'Systematic' as every 50th person on a list was selected</p> Signup and view all the answers

    What type of survey method was used in Example 2 to track migration patterns of a particular species of bird?

    <p>'Random' as birds were randomly tagged</p> Signup and view all the answers

    What type of survey method was used in Classifying a Sample Example 1?

    <p>Systematic</p> Signup and view all the answers

    What type of survey method was used in Classifying a Sample Example 1?

    <p>Systematic</p> Signup and view all the answers

    What is the distinction between population and sample fundamental to in statistics?

    <p>Selecting a representative sample for accurate inference</p> Signup and view all the answers

    Why is it important for a sample to be unbiased in statistics?

    <p>To ensure all parts of the population are represented equally</p> Signup and view all the answers

    What defines an unbiased sample in statistics?

    <p>Selected at random and provides accurate data</p> Signup and view all the answers

    How is bias introduced in a sample in statistics?

    <p>By favoring certain parts of the population over others</p> Signup and view all the answers

    In statistics, what is an unbiased sample selected for?

    <p>Accurate inference about the entire population</p> Signup and view all the answers

    What does an unbiased sample ensure in statistics?

    <p>Equal representation of different demographics</p> Signup and view all the answers

    In Example 2, what is the population being studied?

    <p>The specific species of bird being studied</p> Signup and view all the answers

    In Example 1, why is the sample biased?

    <p>It does not represent the entire population of the state voters</p> Signup and view all the answers

    What introduces bias in a sample?

    <p>Flawed selection method or high nonresponse rate</p> Signup and view all the answers

    In statistics, what term refers to a part of the population being studied?

    <p>Sample</p> Signup and view all the answers

    What type of survey method was used in Example 3 to survey different colors of leaves seen in September?

    <p>Simple random sampling</p> Signup and view all the answers

    What is defined as the collection of all data of interest?

    <p>Census</p> Signup and view all the answers

    What type of survey method was used in Classifying a Sample Example 1 for contacting registered voters?

    <p>Systematic sampling</p> Signup and view all the answers

    What type of survey method was used to track migration patterns of a particular species of bird?

    <p>'Simple random sampling'</p> Signup and view all the answers

    What classification is given to the survey method in Example 1 for contacting registered voters?

    <p>Systematic sampling</p> Signup and view all the answers

    What branch of math deals with collecting, organizing, interpreting, and presenting data?

    <p>Statistics</p> Signup and view all the answers

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