PRMIA Exam 8002 Topic 1 Question 92 Discussion

Actual exam question for PRMIA's 8002 exam

Question #: 92
Topic #: 1

If a time series has to be differenced twice in order to be transformed into a stationary series, the original series is said to be:

Anon-linear

Bintegrated of order 2

Cdifferential

Dnon-functional

Show Suggested Answer

Suggested Answer: B

by Larae at Sep 15, 2024, 01:58 AM

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Albina

3 months ago

B) all the way. I can already smell the stationary series, it's gonna be great. Now, where's the coffee machine in this place?

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Clare

3 months ago

D) non-functional? Seriously, what kind of option is that? Might as well choose 'the series is a sentient being' at this point.

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Yan

3 months ago

I'm not sure about this one. Can someone explain why the answer is B)?

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Brande

3 months ago

Ah, the old 'differenced twice' question. Easy peasy, gotta go with B. Integrating things is how I spend my weekends, you know.

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Darci

2 months ago

Yep, B) integrated of order 2 is the way to go with this one.

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Milly

2 months ago

Definitely B) integrated of order 2, that's the key to making it stationary.

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Talia

2 months ago

Yep, definitely B) integrated of order 2. That's the key to making it stationary.

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Percy

3 months ago

I think it's B) integrated of order 2 as well.

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Sommer

3 months ago

I agree, B) integrated of order 2 is the correct answer.

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Christiane

3 months ago

I think it's B) integrated of order 2 as well.

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Kerry

3 months ago

I agree, B) integrated of order 2 is the correct answer.

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Maryln

3 months ago

I agree with Rene. When a time series needs to be differenced twice, it means it is integrated of order 2.

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Bo

4 months ago

B) integrated of order 2 seems like the correct answer here. I remember learning about this concept in my time series analysis class.

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Vallie

2 months ago

It's all about understanding the properties of time series data.

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Margart

3 months ago

I remember struggling with this concept at first, but it makes sense now.

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Maryanne

3 months ago

Yes, that's right. It means the original series needed to be differenced twice to become stationary.

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Celeste

3 months ago

I agree, integrated of order 2 is the correct answer.

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Rene

4 months ago

I think the answer is B) integrated of order 2.

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