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Construct A Frequency Polygon. The frequency polygon can be created using the following steps. Construct a frequency polygon. 1 Weight Number of in pounds students 101 -130 14 131-160 12 161-190 68 191-220 76 221-250 30 Lot A Frequency 60 40 A 855 1155 1455 1755 2055 2355 2655 Weight in pounds B Frequency 200 150 100 50 1005 105 1605 1905 2205 Weight in pounds. Iv Joining the consecutive mid-points marked by straight lines to obtain the required frequency polygon.
Step 3- Mark the frequency. 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. Frequencies are represented by the heights of the points To construct a frequency polygon. Graph that uses lines that connect points plotted for the frequencies at the midpoints of the classes. The required frequency polygon is as follows. Placing a point on the origin of the.
Creation of a histogram.
To change the x-axis labels right click anywhere on the chart and click Select Data. 1 Weight Number of in pounds students 101 -130 14 131-160 12 161-190 68 191-220 76 221-250 30 Lot A Frequency 60 40 A 855 1155 1455 1755 2055 2355 2655 Weight in pounds B Frequency 200 150 100 50 1005 105 1605 1905 2205 Weight in pounds. Tornado duration based on the frequency distribution found on page 49. Find the midpoints of each class Draw the x and y axes. Also mark the mid-point of the immediately lower class-interval and mid-point of the immediately higher class-interval. Mark the mid-point at the top of each rectangle of the histogram drawn.