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11 Oct 2019, 03:37
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B
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Difficulty:
5%
(low)
Question Stats:
85% (01:13) correct
15%
(01:23)
wrong
based on 528
sessions
History
Date
Time
Result
Not Attempted Yet
Attachment:
GMAT_PS_PREP_T2_39.png [ 20.63 KiB | Viewed 11862 times ]
A. Operator A
B. Operator B
C. Operator C
D. Operator D
E. Operator E
11 Oct 2019, 03:56
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Bunuel
Operator A --> 3, 7, 7, 3: Mean = 5
Operator B --> 4, 5, 5, 6: Mean = 5
Operator C --> 8, 2, 5, 5: Mean = 5
Operator D --> 6, 4, 4, 6: Mean = 5
Operator E --> 3, 4, 5, 6: Mean = 5
Deviations from Mean:
Operator A --> 3-5, 7-5, 7-5, 3-5 --> -2, 2, 2, -2
Operator B --> 4-5, 5-5, 5-5, 6-5 --> -1, 0, 0, 1
Operator C --> 8-5, 2-5, 5-5, 5-5 --> 3, -3, 0, 0
Operator D --> 6-5, 4-5, 4-5, 6-5 --> 1, -1, -1, 1
Operator E --> 3-5, 4-5, 5-5, 6-5 --> -2, -1, 0, 1
We can clearly see Operator B is least deviated from Mean value
IMO Option B
11 Oct 2019, 08:42
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Bunuel
mean value for each operator is 5
and the least variation along mean is observed for operator B ;
IMO B
