Download presentation
Presentation is loading. Please wait.
Published byRoland Glenn Modified over 9 years ago
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
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.