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GAQM CLSSBB-001 Exam - Topic 7 Question 45 Discussion

A valid mathematical Regression represents all of the characteristics shown except _________________.
A) All of the standardized residuals will be within 3 Standard Deviations
B) The sum of the residuals is zero
C) The residuals when plotted follow a Normal Distribution
D) Most standardized residuals are within 2 Standard Deviations
E) The Residual is equal to the difference between the observed and predicted values

GAQM CLSSBB-001 Exam - Topic 7 Question 45 Discussion

Actual exam question for GAQM's CLSSBB-001 exam
Question #: 45
Topic #: 7
[All CLSSBB-001 Questions]

A valid mathematical Regression represents all of the characteristics shown except _________________.

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Suggested Answer: A

by Alex at Apr 26, 2024, 09:00 AM

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Herminia
9 months ago
The residuals following a normal distribution is a common assumption too.
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Timothy
9 months ago
Totally agree, option B is the correct answer!
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Troy
10 months ago
Wait, are all standardized residuals really within 3 SDs? That seems off.
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Rosendo
10 months ago
I think most standardized residuals should be within 2 SDs, right?
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Kiley
10 months ago
The sum of the residuals is always zero.
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Laticia
10 months ago
D sounds familiar, but I can't quite remember if it's most standardized residuals or all of them that should be within 2 standard deviations.
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Dominque
10 months ago
I'm leaning towards C because I recall something about residuals needing to follow a normal distribution, but I could be mixing it up with another concept.
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Shawn
11 months ago
I remember a practice question that mentioned the sum of residuals being zero, so I feel like B could be the right choice here.
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Cassandra
11 months ago
I think the answer might be A, but I'm not completely sure if all standardized residuals really need to be within 3 standard deviations.
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Johanna
11 months ago
Hmm, I'm leaning towards option B. The sum of the residuals being zero seems like a core property of a valid regression model. Let me double-check the other choices.
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Virgina
11 months ago
Wait, I'm a bit confused. I thought most of the standardized residuals had to be within 2 standard deviations. Is that not correct?
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Alonzo
11 months ago
I'm pretty confident on this one. The key is that a valid regression model doesn't require all the standardized residuals to be within 3 standard deviations. That's just a general guideline, not a requirement.
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Moon
11 months ago
Okay, let's see. I know the residuals should have a normal distribution, and the sum should be zero. But what about the standardized residuals?
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Fernanda
11 months ago
Hmm, this seems like a tricky one. I'll need to think carefully about the properties of a valid regression model.
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Cecily
11 months ago
I'm a bit confused by the different options. I'll need to review the information more closely to determine the correct format.
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Cordie
11 months ago
Okay, let me think this through step-by-step. I need to identify the issue with the original code and then determine which of the options will fix it. I'll start by looking at the first code fragment and see if I can spot the problem.
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Aja
1 year ago
Honestly, I'm just hoping the answer is 'all of the above'. That way, I can cover all my bases and still get it right. Regression is like a box of chocolates, you never know what you're gonna get.
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Maryann
1 year ago
C) The residuals when plotted follow a Normal Distribution
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Amira
1 year ago
B) The sum of the residuals is zero
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Catalina
1 year ago
A) All of the standardized residuals will be within 3 Standard Deviations
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Amina
1 year ago
Wow, they're really trying to trick us with all these options. I'm just going to close my eyes and pick one. Eeny, meeny, miny, moe...
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Yolando
1 year ago
Hold up, the residual being the difference between observed and predicted values? That's like, the whole point of regression, right? I'm going with E.
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Cherelle
1 year ago
So, the correct answer is actually D.
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Arthur
1 year ago
True, most standardized residuals should be within 2 Standard Deviations.
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Deeann
1 year ago
But don't forget about the other characteristics of a valid regression.
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Lashawnda
1 year ago
I agree, the residual is indeed the difference between observed and predicted values.
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Barb
1 year ago
Seriously, why do they always make us deal with normal distributions? Ain't nobody got time for that. I'm just going with C.
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Scarlet
1 year ago
Yeah, normal distributions can be tricky. C seems like the best choice here.
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Maynard
1 year ago
I think C is the right answer too. Let's go with that.
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Paulene
1 year ago
I agree, normal distributions are a pain. C sounds good to me too.
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Brock
1 year ago
Option A seems too strict, I mean, who has time to check every single residual? I just want a model that works, you know?
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Roslyn
1 year ago
E) The Residual is equal to the difference between the observed and predicted values
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Nan
1 year ago
A) All of the standardized residuals will be within 3 Standard Deviations
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Jules
1 year ago
Option A might be strict, but it's important to ensure the accuracy of the model
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Shaunna
1 year ago
E) The Residual is equal to the difference between the observed and predicted values
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Floyd
1 year ago
B) The sum of the residuals is zero
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Alaine
1 year ago
A) All of the standardized residuals will be within 3 Standard Deviations
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Aliza
1 year ago
But doesn't a valid regression have residuals following a Normal Distribution?
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Rodolfo
1 year ago
I disagree, I believe the answer is C.
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Aliza
1 year ago
I think the answer is D.
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