Business Statistic
Find the interquartile range and the coefficient of quartile deviation from the following data
0
10
20
30
40
50
60
70
Marks in Statistics
(above):
80
I
No. of students:
150
140
100
80
80
70
30
14
0
[Ans. IQR = 45.623, coefficient of Q.D. = 0.594
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