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Problem Solving (PS) | Re: Arrange the following sets in the order of the increasing magnitude of

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ermohit86 wrote:

sanjitscorps18 wrote:
I. {50, 60, 70, 80}
Mean = 65
Mean to SD ratio ≈ 2.9

II. {35, 40, 45, 50}
Mean = 42.5
Mean to SD ≈ 4.7

III. {90, 110, 130, 150}
Mean = 120
Mean to SD ≈ 2.6

III > I > II

IMHO OptionD


sanjitscorps18
Hi, How do you found Mean to SD ratio or SD? I know conventional method but is there any shortcut? I took approx 4 mins to solve the question so curious if any shortcut isavailable.


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