AP ICET 2017 Shift 1 Paper

Question : 145 of 200

Marks: +1, -0

The quartile deviation of 15,60,40,72,50,28 and 30 is

Solution:

Arranging the data in ascending orders,
15, 28, 30, 40, 50, 60, 72
Number of data = 7

Q_1={7+1}/4=2^{\nd}

data

=28

Q_3=3/4(7+1)=6^{\th}

data

=60

Quartile Deveiation

={60-28}/2=32/2=16

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