Frequency Polygon Frequency Polygon A frequency polygon is

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Frequency Polygon

Frequency Polygon

Frequency Polygon A frequency polygon is a line graph in which points are joined

Frequency Polygon A frequency polygon is a line graph in which points are joined by straight lines and closed to make a polygon A frequency Polygon indicates the spread and skewness of distribution.

Drawing Frequency Polygon A frequency polygon is drawn by plotting the frequency (or frequency

Drawing Frequency Polygon A frequency polygon is drawn by plotting the frequency (or frequency density) against the midpoints of the data. It can be superimposed on a histogram by connecting consecutive midpoints of the tops of columns The area under the polygon represents the frequency of the data ( and is the same as the area of all the bars in the histogram)

Example 1

Example 1

Example 1

Example 1

Example 1

Example 1

Example 2

Example 2

Example 2

Example 2

Drawing Frequency Polygon More Examples for you to try:

Drawing Frequency Polygon More Examples for you to try:

Analyzing Frequency Polygon When the sample is large and there is a large number

Analyzing Frequency Polygon When the sample is large and there is a large number of intervals, since there a large number of line segments the frequency polygon approaches FREQUENCY CURVE. The Frequency Curve (or the Polygon) indicates the spread/dispersion of the distribution. Low Dispersion High Dispersion

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”)

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”) of the distribution. Normal Curve (symmetric) Examples Weight, Height, IQ Test scores

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”)

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”) of the distribution. Positively Skewed Distribution Positive side stretched Examples Number of children in a family Age at which women marry Distribution of wages in a firm

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”)

Analyzing Frequency Polygon A Frequency Curve (or the Polygon) also indicates the SKEWNESS (“lopsidedness”) of the distribution. Negatively Skewed Distribution Negative side stretched Examples Daily maximum temperatures for a month in summer Reaction times for a experiment

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Polygon Hierarchy Megan Smith Polygon Definition A PolygonPolygon Hierarchy Megan Smith Polygon Definition A Polygon
Frequency Polygons Graphs of Frequency Distributions Frequency PolygonFrequency Polygons Graphs of Frequency Distributions Frequency Polygon
Frequency distributions Frequency Frequency distribution Frequency summary displayFrequency distributions Frequency Frequency distribution Frequency summary display
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Section 3 5 Angles of a Polygon PolygonSection 3 5 Angles of a Polygon Polygon
Polygon Presentation By Team Math Resource Page PolygonPolygon Presentation By Team Math Resource Page Polygon
Find the polygon Click on the polygon SorryFind the polygon Click on the polygon Sorry
A regular polygon is a polygon with allA regular polygon is a polygon with all
Velocity Polygon for a Fourbar Introduction Velocity PolygonVelocity Polygon for a Fourbar Introduction Velocity Polygon
Velocity Polygon for a CrankSlider Introduction Velocity PolygonVelocity Polygon for a CrankSlider Introduction Velocity Polygon