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Sep
How To Construct A Frequency Polygon. Create the frequency polygon. To draw frequency polygons first we need to draw histogram and then follow the below steps. Enter the following data for a frequency table that shows the number of students who received a certain score on an exam. To construct a frequency polygon first examine the data and decide on the number of intervals or class intervals to use on the x-axis and y-axis.
Enter the following data for a frequency table that shows the number of students who received a certain score on an exam. Histogram and Frequency Polygon - YouTube. Create the frequency polygon. Class Cumulative boundaries Frequency frequency 55105 1 1 105155 2 3 155205 3 6. Join the points using line segments to obtain the desired frequency polygon. Determine the classes in the dataset by defining the lower and upper limits of each class and arrange them in one column.
Use the frequency distribution from Exercise 11 in Section 2 -1 on page 49 to construct a frequency polygon.
We will plot the frequency on the vertical axis. Enter the data for a frequency table. Calculate the classmark for each class interval. Enter the following data for a frequency table that shows the number of students who received a certain score on an exam. To construct a frequency polygon first examine the data and decide on the number of intervals or class intervals to use on the x-axis and y-axis. Frequency polygons are analogous to line graphs and just as line graphs make continuous data visually easy to interpret so too do frequency polygons.