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Stem and Leaf Display

Stem and Leaf Display. Stem and Leaf displays are an “in between” a table and a graph They contain two columns: The left column contains the first digit in the number The right column contains the remaining digits

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Stem and Leaf Display

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  1. Stem and Leaf Display • Stem and Leaf displays are an “in between” a table and a graph • They contain two columns: • The left column contains the first digit in the number • The right column contains the remaining digits • This provides an estimation of the frequency of each score and the distribution of the scores

  2. Bar Graphs • Bar graphs list the scores or intervals on the X-axis and the frequency of cases on the Y-axis

  3. Histogram • Histograms are used for continuous variables • This is shown by the bars being connected

  4. Frequency Curve and Line Graphs • Frequency Curves are formed by connecting the midpoints of all points of a histogram

  5. Features of a Curve • Normal Curve – a symmetrical, bell shaped curve

  6. Skewed And Bimodal Curves • Skewness – a distribution that is asymmetric • Negative Skew – long tail to the left • Positive Skew – long tail to the right

  7. Bimodal Curves • Bimodal – a distribution with two peaks

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