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IASSC ICBB Exam - Topic 4 Question 100 Discussion

Actual exam question for IASSC's ICBB exam
Question #: 100
Topic #: 4
[All ICBB Questions]

To properly analyze the variables impacting the output of a process we need to collect data that represents at least 80% of the variation in the process and assure ourselves we are collecting data from all three types of variation which are _______________.

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Suggested Answer: A

by Gladis at Jan 27, 2026, 09:16 PM

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Leanna
20 days ago
I remember practicing a question about variation types, and I think it was common cause, special cause, and... random variation?
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Vanda
25 days ago
I think the three types of variation are common cause, special cause, and... something else? I can't quite remember the last one.
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Marshall
30 days ago
I think I remember the three types, but I want to double-check before I start. Better safe than sorry on an exam question like this!
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Judy
1 month ago
No problem, I've got this. The three types are process, measurement, and environmental variation. I'll make sure to collect data that represents all of those to get a full picture.
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Leigha
1 month ago
Wait, what are the three types of variation again? I'm a bit fuzzy on that part. Maybe I'll just focus on collecting 80% of the overall process variation for now.
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Tandra
2 months ago
Okay, I've got this. The three types of variation are common cause, special cause, and measurement system variation. I'll need to make sure my data covers all of those.
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Joaquin
2 months ago
Hmm, this seems like a tricky one. I'll need to think carefully about the three types of variation to make sure I cover them all.
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