Question

The following table shows the classification of percentages of marks of students and the number of students. Draw a frequency polygon from the table.
Result : No. of students
(Percentage)
30-40 : 7
40-50 : 33
50-60 : 45
60-70 : 65
70-80 : 47
80-90 : 18
90-100 : 5

Answer 1

Answer:

frequency polygon with histogram attached

Step-by-step explanation:

%           number of Students

30-40 : 7

40-50 : 33

50-60 : 45

60-70 : 65

70-80 : 47

80-90 : 18

90-100 : 5

A frequency polygon is another type of frequency distribution graph. In a frequency polygon, the number of observations is marked with a single point at the midpoint of an interval. A straight line then connects each set of points.