29
Mar
Frequency Polygon And Frequency Curve. If you drew a line connecting the center top of each of the histogram bars you would have a frequency polygon a series of concatenated short straight lines connecting the tops of the bars. The frequency curve corresponds to the limit shape of a frequency polygon. With the help of frequency polygon the data can be interpreted easily. A frequency polygon is a line of the graph.
Frequency distribution with Inclusive class intervals should be converted into Exclusive and for unequal width of the class interval. This doesnt sound like a major difference but it makes a clear cut between the two types of graphs. This is widely used in the field of statistics in order to collect and organize the data in a systematic manner. Frequency curve is drawn by smoothing the vertices of the frequency polygon. Frequency Polygon - Frequency polygons are one type of graphical representation of data. Ø Then these points are then joined by a straight line.
The frequency polygon is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes.
Representing cumulative frequency data on a graph is the most efficient way to understand the data and derive. Frequency curve is drawn by smoothing the vertices of the frequency polygon. Find the midpoints of each class Draw the x and y axes. The area under the frequency curve frequency polygon and histogram should be equal. The frequency polygon is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes. This is widely used in the field of statistics in order to collect and organize the data in a systematic manner.