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#26 2010-01-06 09:34:25

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Help with Means

No, .9772 and above or 97.72% and above. You are getting it. Everything greater than 97.72% or .9772


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#27 2010-01-06 09:40:29

bodie001
Member
Registered: 2010-01-05
Posts: 21

Re: Help with Means

So the probabilty of the diameter in my pipe being over 0.44 inch is 97.72%

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#28 2010-01-06 10:01:54

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Help with Means

No, The part that is greater than .9772 is the probability of the pipe being over .44 inches. The Standard Normal Curve has been set up so that the area underneath it is 1. What is left over from .9772 when the whole curve is equal to 1?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#29 2010-01-06 10:34:32

bodie001
Member
Registered: 2010-01-05
Posts: 21

Re: Help with Means

I have no idea.

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#30 2010-01-06 10:51:18

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Help with Means

Hi;

If you had 10 apples less 7 how many apples are left? 3 right. So if you have 1 less .9772 what is left?


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#31 2010-01-06 10:53:25

bodie001
Member
Registered: 2010-01-05
Posts: 21

Re: Help with Means

0.0228

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#32 2010-01-06 11:56:00

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Help with Means

Correct! That is the probability of a pipe diameter being larger than .44


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#33 2010-01-07 02:31:40

bodie001
Member
Registered: 2010-01-05
Posts: 21

Re: Help with Means

Thank you.

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#34 2010-01-07 02:34:16

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Help with Means

Hi;

Do you understand some of this now? Bring more problems and I will try to help.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

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