Total number of students of a school in different years is shown in the following table
Years Number of students
1996 400
1998 535
2000 472
2002 600
2004 623

A. Prepare a pictograph of students using one symbol
to represent 100 students and answer the following questions:
(a) How many symbols represent total number of students in the year 2002?
(b) How many symbols represent total number of students for the year 1998?
B. Prepare another pictograph of students using any other symbol each representing 50 students. Which pictograph do you find more informative?"

To do:

We have to prepare a pictograph of students using one symbol to represent 100 students and answer the given questions.

Solution:

(i) 6 symbols represent total number of students in the year 2002.

(ii) 5 complete and 1 incomplete symbols represent total number of students for the year 1998.

The pictograph for the given data is as follows:

Year	Number of students $ \otimes=50 $ students
1996	$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $
1998	$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $ x
2000	$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $x
2002	$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $
2004	$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $$ \otimes $x

Pictograph $B$ gives better approximations.

Therefore,

Pictograph $B$ is more informative.

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Updated on: 10-Oct-2022

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Year	Number of students \( \otimes=50 \) students
1996	\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)
1998	\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \) x
2000	\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)x
2002	\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)
2004	\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)\( \otimes \)x