InterviewSolution
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InterviewSolution
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A Class of 40 students is divided into four groups named as A, B, C and D. Group-wise percentage of marks scored by them are given below in the table. `{:(A,B,C,D),(20,42,10,21),(30,51,25,69),(40,45,85,70),(25,58,73,86),(22,53,98,53),(45,64,43,68),(65,72,64,99):}` By using the coefficient of range find which of the group has shown good performance.A. AB. BC. CD. D |
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Answer» Correct Answer - B (i) Find the coefficient of range of A, B, C and D and compare. (ii) `"Coefficient of range" = ("Maximum value - Minimum value")/("Maximum Value + Minimum value")` (iii) Find the coefficient of range of A, B, C and D. (iv) The least coefficient of range implies good perfprmance. |
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