Probability And Statistics Midterm Review

20 Questions | Total Attempts: 418

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Probability And Statistics Midterm Review - Quiz

Questions and Answers
  • 1. 
    If I collect data from the entire population, I've performed a__________________
    • A. 

      Sample

    • B. 

      Survey

    • C. 

      Census

    • D. 

      Proportion

  • 2. 
    The following are examples of discrete data (Check all that apply.)
    • A. 

      Number of brown M&Ms in a bag

    • B. 

      Weight of a bag of M&Ms

    • C. 

      Favorite M&M color

    • D. 

      Number of stores that sell M&Ms

  • 3. 
    If you collect data on cars by sampling cars in the nearest parking lot, you have performed a.... 
    • A. 

      Clustered sample

    • B. 

      Convenience sample

    • C. 

      Stratified sample

    • D. 

      Random sample

    • E. 

      Self-selected sample

  • 4. 
    What are the measures of variation? (Check all that apply.)
    • A. 

      Median

    • B. 

      Range

    • C. 

      Standard deviation

    • D. 

      Z-score

  • 5. 
    Number of ways to roll a seven with two dice.
  • 6. 
    Which of the following measurements are part of a box plot (box and whisker diagram)
    • A. 

      Upper quartile

    • B. 

      Variance

    • C. 

      Mean

    • D. 

      Z-score

  • 7. 
    To find the probability of a single value in a normal distribution, use the following calculator function:
  • 8. 
    This calculation uses the mean and standard deviation to normalize a value.
    • A. 

      Mean

    • B. 

      Z-score

    • C. 

      Permutation

    • D. 

      Combination

  • 9. 
    Phone number is an example of a permutation
    • A. 

      True

    • B. 

      False

  • 10. 
    What is the following calculation?    
  • 11. 
    What is the following calculation?
  • 12. 
    What is the following calculation? 
  • 13. 
    If you've sellected several schools at random and them sample every car in their parking lots you have performed a...
    • A. 

      Clustered sample

    • B. 

      Convenience sample

    • C. 

      Stratified sample

    • D. 

      Random sample

    • E. 

      Self-selected sample

  • 14. 
    True or false: 
    • A. 

      True

    • B. 

      False

  • 15. 
    Votes in an election is what kind of measurement?
    • A. 

      Nominal

    • B. 

      Ordinal

    • C. 

      Interval

    • D. 

      Ratio

  • 16. 
    If the probability of a late arrival is 20%, I can expect 6 late arrivals out of 30 flights
    • A. 

      True

    • B. 

      False

  • 17. 
    In a normally distributed set of data, the probability that a value is within one standard deviatio of the mean is 
    • A. 

      50%

    • B. 

      5%

    • C. 

      34%

    • D. 

      68%

    • E. 

      17.5%

  • 18. 
    The median is the preferred measure of center for nominal data
    • A. 

      True

    • B. 

      False

  • 19. 
    The opposite of "at least 10" is
  • 20. 
    In a uniform distribution, the probability any any value is the
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