2145 Shape - Symmetry, Skew & Outliers

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| By Anthony Nunan
A
Anthony Nunan
Community Contributor
Quizzes Created: 132 | Total Attempts: 44,116
Questions: 15 | Attempts: 574

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2145 Shape - Symmetry, Skew & Outliers - Quiz

Caution : This is a CHECK BOX quiz, where multiple choices can be selected to make the answer more accurate.


Questions and Answers
  • 1. 

    The stem & leaf plot above represents data which is:

    • A.

      Perfectly Symmetrical

    • B.

      Approximately Symmetrical

    • C.

      Positively Skewed

    • D.

      Negatively Skewed

    • E.

      With Potential Outlier(s)

    • F.

      Approximately Symmetrical, but Bi-modal

    Correct Answer
    D. Negatively Skewed
    Explanation
    Turn clockwise so the stem is horizontal to see the 'shape'

    Rate this question:

  • 2. 

    The histogram above represents data which is:

    • A.

      Perfectly Symmetrical

    • B.

      Approximately Symmetrical

    • C.

      Positively Skewed

    • D.

      Negatively Skewed

    • E.

      With Potential Outlier(s)

    • F.

      Approximately Symmetrical, but Bi-modal

    Correct Answer
    C. Positively Skewed
    Explanation
    Turn clockwise so the stem is horizontal to see the 'shape'

    Rate this question:

  • 3. 

    The histogram above represents data which is:

    • A.

      Perfectly Symmetrical

    • B.

      Approximately Symmetrical

    • C.

      Positively Skewed

    • D.

      Negatively Skewed

    • E.

      With Potential Outlier(s)

    • F.

      Approximately Symmetrical, but Bi-modal

    Correct Answer(s)
    D. Negatively Skewed
    E. With Potential Outlier(s)
    Explanation
    Turn clockwise so the stem is horizontal to see the 'shape'

    Rate this question:

  • 4. 

    The box plot above represents data which is:

    • A.

      Perfectly Symmetrical

    • B.

      Approximately Symmetrical

    • C.

      Positively Skewed

    • D.

      Negatively Skewed

    • E.

      With Outlier(s)

    • F.

      Approximately Symmetrical, but Bi-modal

    Correct Answer
    C. Positively Skewed
    Explanation
    The box plot above represents data that is positively skewed. This means that the tail of the distribution extends towards the higher values, indicating that there are more data points on the lower end of the scale. The median is closer to the lower quartile, and the upper quartile is further away from the median. This suggests that there are a few extreme values in the data set that are driving the skewness.

    Rate this question:

  • 5. 

    The data that relates to the image above is :

    • A.

      Perfectly Symmetrical

    • B.

      Approximately Symmetrical

    • C.

      Positively Skewed

    • D.

      Negatively Skewed

    • E.

      With Potential Outlier(s)

    • F.

      Approximately Symmetrical, but Bi-modal

    Correct Answer
    A. Perfectly Symmetrical
    Explanation
    Approximately Symmetrical is another way of saying 'normally distributed', and will form a 'bell' shaped curve.

    Rate this question:

  • 6.