Page 189 - Start Up Mathematics_6

(a) Which score has occurred the maximum number of times?
(b) Which score has occurred the minimum number of times?

2. Height of the students of Class VI is shown below:
143 144 145 146 147 148 149 150 151 152 153 154
Height
cm cm cm cm cm cm cm cm cm cm cm cm
No. of 3 2 3 1 0 1 6 5 4 2 1 2
students
Represent this information by placing faces in place of numbers for the above information
and answer the following questions:
(a) What height is attained by maximum number of students?
(b) How many students have the minimum height?

3. The parent of a child was given the following
bar chart in a PTM meeting representing his
performance. Observe it carefully and answer
the following questions: 100

(a) What information does the bar graph give? 80
(b) In which subject has the child scored the 60
highest marks? Marks obtained

(c) In which subject has the child scored the 40
minimum marks? 20

(d) Arrange the subjects in ascending order 0
of marks obtained? English Hindi Maths Science
(e) What is the scale chosen to represent the Subjects
marks?
4. Number of persons in various age groups in a town is given in the following table:

Age group 1–14 15–29 30–44 45–59 60–74 75–89
Number of 2 lakhs 1 lakh, 1 lakh, 1 lakh, 60 thousand 40 thousand
persons 40 thousand 20 thousand 20 thousand
Draw a bar graph either on a squared paper or a graph paper to represent the above information
and answer the following questions: (use scale: 1 unit = 20,000 population)

(a) Which age group has the maximum population?
(b) Which two age groups have the same population? Why?

(c) All persons in the age group of 60 and above are called senior citizens. How many senior
citizens are there in the town?

(d) A population of 1 lakh 20 thousand will be represented by how many units on the Y-axis?

Thinking Skills

1. What is the need of choosing a scale? If in a bar graph representing the number of students
in each class, the scale is changed so as 1 unit represents 5 students instead of the previous
10, what difference will it have on the length of the bars?

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