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The marks of 30 students are given below. Construct discrete frequency distribution table and then calculate the coefficient of quartile deviation.
30,20,14,10,12,20,12,10,20,30,10,12,30,10,12,14,14,20,30,12,30,14,20,10,14,30,10,20,14,30

Sagot :

There are 7 students
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