3 Marks Question

Question 13 Marks

Given below are the seats won by different political parties in the polling oucome of a state assembly elections:

Political party	$A$	$B$	$C$	$D$	$E$	$F$
Seats won	$65$	$52$	$34$	$28$	$10$	$31$

Draw a bar graph to represent the polling results.

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Question 23 Marks

The following table shows the number of students participating in various games in school.

Game	Cricket	Football	Basketball	Tennis
Number of students	$27$	$36$	$18$	$12$

Draw a bar graph to represent the above data.

Answer

Take the various types of games along the $x$-axis and the number of students along the $y$-axis. Along the $y$-axis, take $1$ small square $=3$ units. All the bars should be of same width and same space should be left between the consecutive bars. Now we shall draw the bar chart, as shown below:

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Question 33 Marks

The following table gives the lifetimes of $400$ neon lamps:

Lifetime $($in $hr)$	$300-400$	$400-500$	$500-600$	$600-700$	$700-800$	$800-900$	$900-1000$
Number of lamps	$14$	$56$	$60$	$86$	$74$	$62$	$48$

$i.$ Represent the given information with the help of a histogram.
$ii.$ How many lamps have a lifetime of more than $700$ hours?

Answer

$i.$ Histogram is as follows:

$ii.$ Number of lamps having lifetime more than $700$ hours $= 74 + 62 + 48 = 184$

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Question 43 Marks

The following table shows the number of scooters sold by a dealer during six consecutive years. Draw a bar graph to represent this data.

Year	$2011$	$2012$	$2013$	$2014$	$2015$	$2016$
Number of scooters sold (in thousands)	$16$	$20$	$32$	$36$	$40$	$48$

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Question 53 Marks

The approximate velocities of some vehicles are given below:

Name of vehicle	Bicycle	Scooter	Car	Bus	Train
Velocity (in km/hr)	$27$	$45$	$90$	$72$	$63$

Draw a bar graph to represent the above data.

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Question 63 Marks

Various modes of tansport used by $1850$ students of a school are given below:

School bus	Private	Bicycle	Rickshaw	By foot
$640$	$360$	$490$	$210$	$150$

Draw a bar graph to represent the above data.

Answer

Take the mode of transpot along the $x-$axis and the number of students along the $y-$axis. Along the $y-$axis, take $1$ big division $= 100$ units. All the bars should be of same width and same space should be left between the consecutive bars. Now we shall draw the bar chart, as shown below:

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Question 73 Marks

On a certain day, the temperature in a city was recorded as under.

Time	$5 a.m.$	$8 a.m.$	$11 a.m.$	$3 p.m.$	$6 p.m.$
Temperature (in °C)	$20$	$24$	$26$	$22$	$18$

Illustrate the data by a bar graph.

Answer

Take the timings along the $x-$ axis and the temperatures along the $y-$axis. Along the $y-$axis, take $1$ small square $= 5$ units. All the bars should be of same width ans same space should be left between the consecutive bars. Now we shall draw the bar chart, as shown below:

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Question 83 Marks

The following table shows the life expectancy (average age to which people live) in various countries in a particular year. Representing the data by a bar graph.

Country	Japan	India	Britain	Ethiopia	Cambodia	$UK$
Life expectancy	$84$	$68$	$80$	$68$	$62$	$73$

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