Page 178 - New Medley 4 Semester 2 PDF (Merged)
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7 Data Handling Competencies
C-3.2
We have learnt about data in our earlier classes. Now we will learn more
about it. Before we go ahead let us observe the following.
Let us Recall
21st CENTURY SKILLS • Initiative and Self-direction
Following is the blood group of 30 students of class IV:
A, B, B, AB, A, A, O, A, B, A, O, B , B, AB, B, O, B, A, O, B, AB, A, B, O, O,
A, B, A, O, B.
Arrange the above information in a table using tally marks.
Solution:
Types of blood group Tally bars Number of students
A
B
AB
O
Pictograph
A pictograph is a way to represent data that conveys its meaning through
pictures.
A picture is used to represent one or more items.
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