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Author Topic: S1 and S2 DOUBTS HERE!!!!  (Read 62610 times)

Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #315 on: December 25, 2011, 01:29:36 pm »
Sir plz explain that question  :o
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #316 on: December 25, 2011, 03:33:48 pm »
because you can have two vowels in three different ways
VVC
VCV
CVV
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #317 on: December 25, 2011, 04:39:10 pm »
Quote from: astarmathsandphysics on December 25, 2011, 03:33:48 pm
because you can have two vowels in three different ways
VVC
VCV
CVV

ohhhhhhh.....it's that simple ??? ......

Thanks alot Sir  ;)
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #318 on: December 26, 2011, 07:46:39 pm »
No probs
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #319 on: December 28, 2011, 01:52:40 pm »
Sir , I don't understand in (f) in the attached question
Could you please explain it by your own way as the mark scheme is confusing enough for me  ??? ???

ADDED DOUBT

part (c) the 2nd line plz in answer
« Last Edit: December 30, 2011, 01:57:33 pm by ~ Miss Relina ~ »
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #320 on: January 04, 2012, 08:54:26 am »
Positive skew. The skew is always in the direction of the tail, where there are less readings.
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #321 on: January 05, 2012, 06:42:17 am »
Quote from: astarmathsandphysics on January 04, 2012, 08:54:26 am
Positive skew. The skew is always in the direction of the tail, where there are less readings.

ahaaaa...so I can't get it from the box plot but what I shloud think about is the attached one right
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #322 on: January 05, 2012, 08:15:17 am »
2 question to answer plz  ???

regarding the first question what I don't understand is why he didn't use ''square root 10'' as a standard variation ??? what's your opinion
« Last Edit: January 05, 2012, 08:18:11 am by ~ Miss Relina ~ »
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #323 on: January 05, 2012, 09:44:16 pm »
Your skew diagram is exactly right
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #324 on: January 05, 2012, 09:47:33 pm »
Normal distribution is written N(mean, standard deviation^2) so standard deviation = sigma=10
As for the second I will post an attachment
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #325 on: January 05, 2012, 09:57:28 pm »
here
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #326 on: January 06, 2012, 06:52:16 am »
Quote from: astarmathsandphysics on January 05, 2012, 09:57:28 pm
here

Thanks alot Sir
+rep

also plz see my answer to this one which one is right ???
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #327 on: January 06, 2012, 11:54:43 pm »
You are using sqrt(10) as the standard deviation but it is 10.
They have the correct zanswer
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Offline ~ Miss Relina ~

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #328 on: January 07, 2012, 06:58:02 am »
Quote from: astarmathsandphysics on January 06, 2012, 11:54:43 pm
You are using sqrt(10) as the standard deviation but it is 10.
They have the correct zanswer

Sir Thanks ...........can you plz  look here

I'm sorry........
I know I might be asking too  much about that question but I really want to understand it  :-[ :-[ :-[ :-[ :-[ :-[
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Offline astarmathsandphysics

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Re: S1 and S2 DOUBTS HERE!!!!
« Reply #329 on: January 07, 2012, 11:12:42 pm »
It says sigma^2=10^2
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