Page 4 - Digi Notes - Maths -15 April

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Introduction:

In the previous two digi-notes on Data Interpretation; we discussed The Table Chart, Bar
Graph and Pie Chart. Now let us do some data analysis with the help of Line Graph.

The following line graph shows the number of the students (in 1000) in different
institutions in a college in 2015

70
65
60

50

40 40 38

30
32
20 20
15
10

0

HIT ABC ZMR WER THE KIT

1. Find the average of the number of the students in institutions ABC, THE, ZMR and KIT in
the year 2015.
+ + +
=

2. The number of the students in WER in the years 2015 is approximately what percentage
of the number of the students in all the institutions in the year 2015?

× ≅ %
3. The number of the students in the institution KIT is approximately what % of the number
of the students in WER?

× ≅ %
4. The number of the students in institution WER in the year 2015 is approximately what %
more than the number of the students in institution ABC in the years 2015?
~
× = . %
5. The number of the students in institution ABC in the year 2015 is approximately what %
less than the number of the students in institution WER in the years 2015?

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