Measures Of Central Tendency Assessment

6 Questions  I  By Klrhinehart3843
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  • 1. 
    Find the mean of the data below. 7, 23, 11, 32, 9
    • A. 

      11

    • B. 

      16.4

    • C. 

      25

    • D. 

      7


  • 2. 
    If a data set has an outlier, which measure of central tendency would be the best measure of the middle to use?
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

    • D. 

      Range


  • 3. 
    Which of the following statements is NOT true about the two data sets below? Set A:  156, 175, 122, 141, 178, 111   147.17  148.5 Set B:  189, 210, 167, 100, 125, 143   155.67  155
    • A. 

      The mean for Set A is approximately 9 more than Set B.

    • B. 

      The man for Set A is approximately 9 less than Set B.

    • C. 

      The median for Set A is 148.5.

    • D. 

      The median for Set B is approximately 6 more than Set A.


  • 4. 
    Which data set has a larger spread in the top 25%? Joy:  52, 67, 73, 81, 83, 89, 93    Chrystal:  68, 72, 73, 79, 84, 85  Jacob:  72, 75, 78, 81, 85, 89, 98   Sasha:  88, 89, 92, 95, 95, 96, 100
    • A. 

      Joy

    • B. 

      Chrystal

    • C. 

      Jacob

    • D. 

      Sasha


  • 5. 
    Your county is conducting a survey to determine the mean annual income per household.  Which of the following sampling methods would be more likely to result in a representative sample?
    • A. 

      A phone survey of 100 people between 2 and 3 pm.

    • B. 

      Survey's sent to 100 single family homes.

    • C. 

      Survey's sent to 100 homes that were randomly selected from a database of all county adults.

    • D. 

      None of these


  • 6. 
    Find the MAD for the data set below. 18, 15, 24, 12, 29, 31, 24, 19, 27  
    • A. 

      22.1

    • B. 

      48.9

    • C. 

      5.43

    • D. 

      24


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