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Term 2 · Week 2 · Data and Descriptive Statistics

Standard problem

Standard

Find the median of the data set 7,3,9,12,5,87, 3, 9, 12, 5, 8.

Show step-by-step solution

Answer: 7.5

  1. Arrange in order: 3,5,7,8,9,123, 5, 7, 8, 9, 12.
  2. With 6 values the median is the mean of the 3rd and 4th: 7+82=7.5\dfrac{7 + 8}{2} = 7.5.

Common errors to watch for

  • Taking the middle of the unsorted list.
  • Choosing just one middle value when there is an even number of data.

Budget of Work competencies

  • gm11.t2.w2.c4
    Use appropriate technologies (e.g., calculator, Excel, Jamovi, Geogebra, etc.) to calculate measures of central tendency and variability.

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