Page 243 - ICSE Math 6

3. The adjoining bar graph represents the number of people 80
who use different modes of transport. Using the bar 70
graph, answer the following questions. 60
(a) How many people use trains? 50
(b) Which mode of transport is used maximum and 40
which is least used? 30

(c) What is the total number of people who use bikes 20
and cars? 10

0
Bus Bike Train Car

4. The marks obtained by a student in various subjects are given below.

Subject English Hindi Maths Science History
Marks obtained 70 75 80 95 60

Draw a bar graph to represent the marks obtained by the student.
5. A random survey was done on the difficulty level of a competitive examination. A total of 100
candidates were asked to choose one of the following responses: Difficult, Average, Easy, No
comments. The result of survey is shown in the table.

Response Difficult Average Easy No comments
No. of candidates 30 25 40 5

Draw a bar graph to represent the above data.
6. Observe the bar graph depicting the number of students in class VI of a school in various academic
years and answer the following questions. 1 unit length = 1 student
(a) What information is provided by the bar 300
graph? 250
(b) How does the strength of the class change Number of students 200
150
over various years? 100
(c) In which year was the number of students 50 0
maximum? 2005–06 2006–07 2007–08 2008–09 2009–10
Academic years
(d) Correct the following statement:
“The number of students in the academic year 2007–08 was three times the number of students
in the year 2005–06.”
7. On the basis of a survey, it is found that in a day about 1,000 trucks, 700 buses, 2,500 cars,
4,500 two wheelers and 2,000 cycles pass through a road leading to Bhopal. Draw a bar graph
to represent the above information.

Measures of Central Tendency

There are certain single values that lie within the data and are representative of all the values of the
data. These are known as central tendencies. The three central tendencies are: mean, median and
mode. The mean, median and mode give some sort of central value, i.e., the average of the data, what
divides the data into equal halves and the most frequently occurring value of the data respectively.

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