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Junior | Next Rank: 30 Posts
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by smashinonions » Mon Jun 23, 2008 6:51 pm
for the set of given numbers the avg is 4 and the SD is sqrt (10)

so among the given ans only (A) is close to the SD of 10

I solved it by plugging in choices.
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by vishubn » Tue Jun 24, 2008 10:34 pm
Anyone can put more light on this ??

cheers
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by wawatan » Tue Jun 24, 2008 11:37 pm
what is the OA?

i thought the answer is B.

if the mean is 4 and you want the closest standard deviation, then you would want two data points closest to the mean with less dispersion....anyone else agree?
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by nareshattri » Wed Jun 25, 2008 12:59 am
Ans could be D. or E. :(

both results in SD of (7)^0.5 which is most near to earlier (8.0)^0.5

I think, I missed something but I'm not aware of it. Can anyone help me out?

Thanks,
Naresh
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by codesnooker » Wed Jun 25, 2008 2:16 am
Check the following link:-

https://www.beatthegmat.com/shortcut-in- ... 10473.html

It may help you.
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