Q1 of 50 Page 163

The age group and number of persons, who donated blood in a blood donation camp is given below. Draw a pie diagram from it.

Let us find the measures of central angles and show them in a table.

Know that,




Now we shall show the table into a pie chart.



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2

Show the following data by a frequency polygon.

 3

The following table shows the classification of percentages of marks of students and the number of students. Draw a frequency polygon from the table.

 2

The marks obtained by a student in different subjects are shown. Draw a pie diagram showing the information.

 3

In a tree plantation programme, the number of trees planted by students of different classes is given in the following table. Draw a pie diagram showing the information.