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IASSC ICBB Exam - Topic 8 Question 75 Discussion

Actual exam question for IASSC's ICBB exam

Question #: 75
Topic #: 8

[All ICBB Questions]

It would be more likely than not for a Belt conducting a Regression Analysis to find that the _______________________.

Ar2 value is smaller than the absolute value of r

BCorrelation Coefficient equals r2

CCoefficient of Determination is less than r2

DCorrelation Coefficient equals r divided by 2

Show Suggested Answer

Suggested Answer: D

by Yoko at Sep 09, 2024, 07:11 PM

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Angella

6 months ago

Wait, are we sure about A? That doesn't seem right to me.

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Shaun

7 months ago

D sounds weird, I've never heard of that before.

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Lorean

7 months ago

C seems off, isn't r2 always the square of r?

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Leota

7 months ago

I think B is correct, they are related but not equal.

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Lillian

7 months ago

A is definitely true, r2 is always less than r.

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Peggie

8 months ago

I feel like option D is definitely wrong, but I can't quite remember how the correlation coefficient is calculated in relation to r².

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Theodora

8 months ago

I practiced a question where the Coefficient of Determination was discussed, but I can't recall if it was less than r² or not.

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Fabiola

8 months ago

I think the correlation coefficient is actually the square root of r², so maybe option B could be correct?

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Carmen

8 months ago

I remember something about the r² value being related to the correlation coefficient, but I'm not sure if it's always smaller.

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Romana

8 months ago

This is a good test of my statistical knowledge. I'll need to carefully consider the definitions of each term to determine the most likely outcome. Time to put my problem-solving skills to work!

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Lisbeth

8 months ago

Ah, I see what they're getting at. The r-squared value is always less than or equal to the absolute value of r, so A must be the right answer. Regression analysis is all about understanding those relationships.

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Iraida

8 months ago

I'm a little unsure about this one. The wording is a bit tricky, and I don't want to overthink it. Let me re-read the options and see if I can eliminate any of the choices.

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Franklyn

8 months ago

Okay, I've got this. The r-squared value is the coefficient of determination, which is the square of the correlation coefficient r. So the correct answer must be C.

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Ammie

8 months ago

Hmm, this question is testing my understanding of regression analysis. I'll need to think carefully about the relationships between the different statistical measures.

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Lanie

8 months ago

Value-add flow, production map, value stream... Ugh, I'm drawing a blank on the exact terminology here. I'll have to make an educated guess and hope for the best.

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Jesusita

1 year ago

I'm going with C. It just makes the most statistical sense to me. Though I do wonder what a Regression Analysis on a Belt would actually entail...

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Annita

12 months ago

Yeah, that's true. It's a key concept in understanding the relationship between variables.

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Celeste

1 year ago

I believe the Coefficient of Determination is always less than r2 in Regression Analysis.

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Graciela

1 year ago

I think C is the correct answer too. It's all about the Coefficient of Determination.

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Patrick

1 year ago

Hey, at least we're not asked to find the best model for a Regression Squirrel Analysis. That would be nuts!

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Tamie

1 year ago

C) Coefficient of Determination is less than r2

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Shawana

1 year ago

B) Correlation Coefficient equals r2

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Blondell

1 year ago

A) r2 value is smaller than the absolute value of r

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Dorcas

1 year ago

D sounds like it's trying to trick me. The Correlation Coefficient and r^2 are related, but not in that way!

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Candida

12 months ago

Yeah, D is definitely not the correct relationship between Correlation Coefficient and r^2.

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Youlanda

12 months ago

I agree, D does seem a bit misleading.

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Aleta

12 months ago

C) Coefficient of Determination is less than r2

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Brianne

12 months ago

B) Correlation Coefficient equals r2

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Sanjuana

1 year ago

A) r2 value is smaller than the absolute value of r

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Keena

1 year ago

I'm torn between A and C. The r^2 value is the square of the Correlation Coefficient, so it would be larger than the absolute value of r.

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Julio

1 year ago

I believe the Coefficient of Determination is less than r2.

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Eulah

1 year ago

I think the r2 value is smaller than the absolute value of r.

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Kristofer

1 year ago

I think option C is the correct answer. The Coefficient of Determination is always less than or equal to the square of the Correlation Coefficient.

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Alverta

1 year ago

Hmm, I see your point. But I still think A) makes more sense because r2 value is always smaller than r.

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Justine

1 year ago

I disagree, I believe the answer is B) Correlation Coefficient equals r2.

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Alverta

1 year ago

I think the answer is A) r2 value is smaller than the absolute value of r.

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