IASSC ICBB Exam - Topic 5 Question 102 Discussion

Actual exam question for IASSC's ICBB exam

Question #: 102
Topic #: 5

[All ICBB Questions]

A valid mathematical Regression represents all of the characteristics shown except

___________________________.

AThe residuals when plotted follow a Normal Distribution

BThe sum of the residuals is zero

CAll of the standardized residuals will be within 3 Standard Deviations

DMost standardized residuals are within 2 Standard Deviations

Show Suggested Answer

Suggested Answer: A

by Yuki at Apr 02, 2026, 05:16 AM

Limited Time Offer

25%

Off

Get Premium ICBB Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Deonna

14 days ago

I’m a bit confused about the normal distribution part. I thought the residuals should follow a normal distribution, but I guess it could be an exception in some cases?

upvoted 0 times

...

Katlyn

19 days ago

I feel like most standardized residuals being within 2 standard deviations is a common characteristic, so I’m leaning towards A or C as the answer.

upvoted 0 times

...

Kanisha

24 days ago

I remember practicing a question about residuals, and I think the sum of residuals being zero is a key property of regression. So maybe it's not B?

upvoted 0 times

...

Kimberlie

29 days ago

I think the answer might be C, but I'm not entirely sure if all standardized residuals have to be within 3 standard deviations.

upvoted 0 times

...