Lesson 5: Measuring Center with Mean and Median

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September 4, 2016 at 11:00 am  •  Posted in f16-busad265 by  •  0 Comments

Mon, Sep 5

Review:

  • Histograms

Presentation:

  • Measures of Center
    • Mean
      • Same as Average
      • Sum of values divided by count
      • Example
    • Median
      • Center value within ordered sequence of values
      • Same as 50th Percentile
      • 50/100 * count = position within ordered sequence of values
        • If the position is between two numbers then take the average of those two values.
      • Example
    • Video:
    • Example:
      • Pass completion yardage by Justin Holman of UCF in game vs South Carolina State on Sat, Sep 3
        • {-1,2,5,6,6,7,8,13,13,14,16,32,35,37}
        • n = 14
        • mean = 13.8
        • median = 10.5

Activity:

  • Determine the mean and median for the following data:
    • Data set 1: {2, 4, 8, 4, 6, 2, 7, 8, 4, 3, 8, 9, 4, 3, 5}
    • Data set 2: {7, -2, 5, 9, 0, -3, -6, -7, -4, -5, 2, -8}
    • Data set 3: {213, 345, 609, 73, 167, 243, 444, 524, 199, 682}

Assignment:

 

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