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Author Topic: statistics  (Read 4697 times)

Offline candy

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statistics
« on: May 27, 2009, 02:10:09 pm »
50/50--------full marks
45+/50-------between 45 and 50
40+/50-------between 40 and 44
30+/50-------between 30 and 39
30-/50-------below 29
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Offline Rage2o9

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Re: statistics
« Reply #1 on: May 27, 2009, 08:52:09 pm »
50/50, actually.
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Offline KillaInstinc

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Re: statistics
« Reply #2 on: May 27, 2009, 09:47:27 pm »
discuss all da qiestions....

last ques..wat did u get by observing...dat m-1/2s and m+1/2s

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Offline sahrhp

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Re: statistics
« Reply #3 on: May 27, 2009, 10:00:13 pm »
it was like 18.2-7.1 and 18.2+7.1 i dnt remember the values off the curve
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Offline Rage2o9

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Re: statistics
« Reply #4 on: May 27, 2009, 11:56:32 pm »
Quote from: sahrhp on May 27, 2009, 10:00:13 pm
it was like 18.2-7.1 and 18.2+7.1 i dnt remember the values off the curve

Did you get around 160 or so?
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Offline osmosis

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Re: statistics
« Reply #5 on: May 28, 2009, 02:49:59 am »
I got 160 too..... :)
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Offline eye-candy

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Re: statistics
« Reply #6 on: May 28, 2009, 07:02:11 am »
me 2.... :)
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Offline eye-candy

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Re: statistics
« Reply #7 on: May 28, 2009, 07:14:41 am »
ne1 remembers da answers to da 1st q??
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Offline isaac mendez

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Re: statistics
« Reply #8 on: May 28, 2009, 07:23:57 am »
i also got 160...
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Offline KillaInstinc

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Re: statistics
« Reply #9 on: May 28, 2009, 07:35:15 am »
wat was da 1st question ??
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Offline Rage2o9

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Re: statistics
« Reply #10 on: May 28, 2009, 10:13:57 am »
The first question was finding the mean.
I got 997. What about you guys?
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Offline eye-candy

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Re: statistics
« Reply #11 on: May 28, 2009, 10:16:58 am »
ya evn i 996.8
wat abt da 2nd part of this q ??
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Offline Rage2o9

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Re: statistics
« Reply #12 on: May 28, 2009, 11:10:54 am »
Quote from: eye-candy on May 28, 2009, 10:16:58 am
ya evn i 996.8
wat abt da 2nd part of this q ??

Should leave the answer to 3s.f. so 997.
Anyway, what was the second part of the question? I forgot.
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Offline eye-candy

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Re: statistics
« Reply #13 on: May 28, 2009, 11:47:07 am »
da prob dat exactly 2 of 3 chosen cartons hav volume greater den 1002

my ans ws like.....(.25*.25*.75)^3 =0.000103    ???
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Offline insane.kid

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Re: statistics
« Reply #14 on: May 28, 2009, 11:58:48 am »
oops i did 3C2 * .25^2 * .75 = .141 this is what i did for part ii) of question 1 ???
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