Questions
Number of steps (in thousands) taken by 1 persons in a day are:
12, 7 , 15, 10, 17, 19, 25
The Quartile deviation is
a
14.5
b
5
c
9
d
4.5
detailed solution
Correct option is D
Arrangement of the given data in ascending order of magnitude is: 7, I0, 12, 15, 17, 19,25 Here, Q1= size of n+14th item = size of 2 nd item =10Q3= size of 3(n+1)4th item = size of 6 th item =19 Then Q.D. =Q3−Q12=19−102=4.5Talk to our academic expert!
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