Q2 of 16 Page 196

A total number of students of a school in different years is shown in the following table:














Years



Number of Students



1996


1998


2000


2002


2004



400


535


472


600


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?

(A) We can prepare the pictograph of the given data as follows:






























YEAR



NUMBER OF STUDENTS () = 100 STUDENTS



1996





1998





2000





2002





2004





(a) Here,


We know that,


= 100 students


And, it is given that, In the year 2002, there were 600 students


Hence,


6 symbols  will represent the students of the year 2002


(b) Here,


We know that,


= 100 students


And, it is given that, in the year 1998, there were 535 students


Hence,


5 complete and one incomplete symbol  will represent the students of the year 1998.


(B)






























YEAR



NUMBER OF STUDENTS () = 50 STUDENTS



1996





1998





2000





2002





2004





Hence,


We can observe that,


The second pictograph is more informative

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Village A: 80


Village B: 120


Village C: 90


Village D: 40


Village E: 60


Prepare a pictograph of these animals using one symbol ⊗ to represent 10 animals and answer the following questions:


(a) How many symbols represent animals of village E?


(b) Which village has the maximum number of animals?


(c) Which village have more animals: village A or village C?

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Read the bar graph and write down your observations. In which year was


(a) The wheat purchased maximum?


(b) In which year was the wheat purchased minimum?

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Observe this bar graph which is showing the sale of shirts in a ready made shop from Monday to Saturday.


Now answer the following questions:


(a) What information does the above bar graph give?


(b) What is the scale chosen on the horizontal line representing number of shirts?


(c) On which day was the maximum number of shirts sold? How many shirts were dols on that day?


(d) On which day was the minimum number of shirts sold?


(e) How many shirts were sold on Thursday?