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PS, Getting problem

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by gmattester » Thu Aug 21, 2008 8:30 pm
Here are 2 questions for which I am getting wrong answer. Can someone plz. help
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Re: PS, Getting problem

by sudhir3127 » Thu Aug 21, 2008 8:42 pm
gmattester wrote:Here are 2 questions for which I am getting wrong answer. Can someone plz. help
first one is 75%

Mean is 10 SD = 0.3

within 1 SD means 10+/- 0.3 ( 9.7 to 10.3)

so we need to find numbers which all within 9.7 to 10.3

there are 6 numbers out of 8

hence 6/8 = 75%

hope that helps..
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by gmattester » Thu Aug 21, 2008 8:45 pm
Thanks Sudhir....
Can someone explain 2nd question
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by sudhir3127 » Thu Aug 21, 2008 8:46 pm
gmattester wrote:Thanks Sudhir....
Please remove one of ur attachments as both are the same !!!
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by aim-wsc » Thu Aug 21, 2008 9:16 pm
sudhir3127 wrote:
gmattester wrote:Thanks Sudhir....
Please remove one of ur attachments as both are the same !!!
errm let it be there... it creates problem if removed... some kind of bug....
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by gmattester » Fri Aug 22, 2008 6:09 am
Can someone plz. explain my 2nd question

Thanks......
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by sudhir3127 » Fri Aug 22, 2008 6:20 am
gmattester wrote:Can someone plz. explain my 2nd question

Thanks......
can u please check both attachments and tell me the difference.. i tried downloading both and i find them the same....
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by 4meonly » Fri Aug 22, 2008 6:53 am
2nd question:

After dealing with statement we have
for C: time - c, rate - 1/c
for H: time - h, rate - 1/h
Combined rate - 1/c + 1/h = (c+n)/(cn)
Combined time (cn)/(c+n) = t

remember that c<h
You can plug in numbers
let c=2, h=3, we have

I - OK
II - not OK, it should be t<c<h
III - OK

Answer E
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by aim-wsc » Fri Aug 22, 2008 7:06 am
sudhir3127 wrote:
gmattester wrote:Can someone plz. explain my 2nd question

Thanks......
can u please check both attachments and tell me the difference.. i tried downloading both and i find them the same....
LOL
This is funny.
:lol:
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