Grade 6 Mathematics · Unit 2: Understanding the World Around Us Through StatisticsStandard 6.DS.4

Lesson 2.3Median of an Even Set

Apply Day · Set BSecond form · new problems, same idea

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
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Learning target I can find the median of a data set and use it to describe what is typical.

Remember2.3 · Part II

Measures of Center: Median

  1. Order all data values from least to greatest
  2. Odd count: The median is the exact center number
  3. Even count: The median is the mean of the two middle numbers

Words: Median (Mediana)Mode (Moda)Outlier (Valor atípico)Data distribution (Distribución de datos)Variability (Variabilidad)

  1. 1Complete each step, then write the final answer.

    Find the median of this data set: 3, 8, 5, 1, 9.

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.

    Find the median of this data set: 12, 4, 10, 6.

    Show your work
    Final answer:
  3. 3Complete each step, then write the final answer.

    Four scores have a median of 15. Three scores are 10, 14 and 20. The missing score is between 14 and 20. Find it.

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.

    A store sold 20, 35, 25 and 30 sandwiches on four days. What is the median number of sandwiches?

    Show your work
    Final answer:
  5. 5Circle the letter of the best answer. Show how you know.

    Ages at a party are 11, 12, 12, 13, 14 and 45. Which value best describes a typical age?

    1. A12.5 — the median
    2. B17.8 — the mean
    3. C45 — the oldest
    4. D11 — the youngest
    Show your work
  6. 6Complete each step, then write the final answer.

    Seven values have a median of 20. In order, the 3rd value is 18. You add two new values, 1 and 2. What is the new median?

    Show your work
    Final answer:
  7. 7Circle the letter of the best answer. Show how you know.

    Find the mean of: 10, 14, 8, 12, 16

    1. A10
    2. B12
    3. C14
    4. D60
    Put the data in order
    Work
  8. 8Circle the letter of the best answer. Show how you know.

    Find the median of: 3, 7, 2, 9, 5

    1. A3
    2. B5
    3. C5.2
    4. D7
    Put the data in order
    Work
  9. 9Circle the letter of the best answer. Show how you know.

    Find the mode of: 4, 7, 4, 9, 2, 4, 8

    1. A2
    2. B4
    3. C7
    4. D9
    Put the data in order
    Work
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