What is a cumulative frequency polygon?
What is a cumulative frequency polygon?
An ogive (oh-jive), sometimes called a cumulative frequency polygon, is a type of frequency polygon that shows cumulative frequencies. In other words, the cumulative percents are added on the graph from left to right. An ogive graph plots cumulative frequency on the y-axis and class boundaries along the x-axis.
What is frequency polygon class 9?
A frequency polygon is a graphical form of representation of data. It is used to depict the shape of the data and to depict trends. It is usually drawn with the help of a histogram but can be drawn without it as well.
What do you mean by frequency polygon?
A frequency polygon is a visual representation of a distribution. The visualization tool is used to understand the shape of a distribution. Essentially, the frequency polygon indicates the number of occurrences for each distinct class in the dataset. The frequency polygon can serve as an alternative to a histogram.
What is frequency polygon graph?
A frequency polygon is a line graph of class frequency plotted against class midpoint. It can be obtained by joining the midpoints of the tops of the rectangles in the histogram (cf. Fig. 3.3.).
What is frequency polygon class 11?
Frequency Polygons. A frequency polygon is almost identical to a histogram, which is used to compare sets of data or to display a cumulative frequency distribution. It uses a line graph to represent quantitative data.
What is frequency curve Class 11?
A frequency curve is a curve that represents the frequencies of the distribution graphically. It can be drawn by using the histogram. The total area of a frequency curve is unity.
What is difference between histogram and frequency polygon?
A frequency polygon is a graph constructed by using lines to join the midpoints of each interval, or bin. A histogram is a graph that illustrates the relative frequency or probability density of a single variable.
How do you draw a relative frequency polygon?
To construct a relative frequency polygon: Sum the number of points in each interval, divide the sum of each interval by the total number of data points, and multiply by 100. The result is the percentage of the total number of data points that is represented by each interval.
What is the difference between a histogram and a polygon?
