Mathematics

9th -

12thgrade

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AP Stats - 4.1 Quiz

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6 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    A popular website places opinion poll questions next to many of its news stories. Simply click your response to join the sample. One of the questions was “Do you plan to diet this year?” More than 30,000 people responded, with 68% saying “Yes.” Which of the following is true?

    About 68% of Americans planned to diet.

    The poll used a convenience sample, so the results tell us little about the population of all adults.

    The poll uses voluntary response, so the results tell us little about the population of all adults.

    The sample is too small to draw any conclusion.

    None of these.

  • 2. Multiple Choice
    1 minute
    1 pt

    To gather information about the validity of a new standardized test for 10th-grade students in a particular state, a random sample of 15 high schools was selected from the state. The new test was administered to every 10th-grade student in the selected high schools. What kind of sample is this?

    A simple random sample

    A stratified random sample

    A cluster sample

    A systematic random sample

    A voluntary response sample

  • 3. Multiple Choice
    2 minutes
    1 pt

    Your statistics class has 30 students. You want to ask an SRS of 5 students from your class whether they use a mobile device for the online quizzes. You label the students 01, 02,…, 30. You enter the table of random digits at this line:


    14459 26056 31424 80371 65103 62253 22490 61181

    Your SRS contains the students labeled


    (We haven't gone over this so take your best educated guess and we'll discuss after the question)

    14, 45, 92, 60, 56

    14, 31, 03, 10, 22

    14, 03, 10, 22, 22

    14, 03, 10, 22, 06

    14, 03, 10, 22, 11

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