APICS CPIM-BSP Exam - Topic 2 Question 114 Discussion

Actual exam question for APICS's CPIM-BSP exam

Question #: 114
Topic #: 2

A product has a forecast of 200 units a month. The actual demand for the past 6 months has been 195, 210, 205, 190, 220, and 225. Which of the following values reflects the mean absolute deviation for this data?

A7.5

B12.5

C45

D75

Show Suggested Answer

Suggested Answer: B

by Thurman at Jul 12, 2025, 10:32 PM

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Vallie

2 months ago

Wait, how can it be 45? That seems way off.

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Zack

2 months ago

I think the MAD is around 12.5, seems right.

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Caitlin

3 months ago

Just did the math, and it looks like 7.5 is incorrect.

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Carey

3 months ago

Totally agree, 12.5 makes sense based on those numbers!

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Keva

3 months ago

The actual demands are pretty close to the forecast.

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Georgeanna

3 months ago

I vaguely recall that we need to subtract the forecast from each actual demand, then average those absolute values. I hope I can get the right answer!

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Karl

4 months ago

I feel like the actual demand numbers are pretty close to the forecast, so the MAD shouldn't be too high, but I can't remember the exact calculation steps.

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Misty

4 months ago

I think we did a similar question in practice where we had to find the average deviation from the forecast. I hope I can apply that here.

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Cristy

4 months ago

I remember we calculated mean absolute deviation in class, but I'm not sure if I got the formula right.

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Loren

4 months ago

Hmm, I'm not sure I'm following. Let me re-read the question and think this through step-by-step.

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Andra

4 months ago

No problem, I've got this. I'll just take the absolute value of the difference between each actual demand and the forecast, add them up, and divide by the number of data points.

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Glory

4 months ago

Wait, what's the mean absolute deviation again? I'm a little fuzzy on that concept.

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Halina

5 months ago

Okay, I think I can handle this. I just need to calculate the mean absolute deviation from the actual demand data and the forecast.

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Gladis

6 months ago

Haha, mean absolute deviation? More like mean absolute head-scratching! But seriously, gotta go with B) on this one. Anything higher and the warehouse is gonna need a bigger storage unit.

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India

6 months ago

This one's a tricky one, but I'm feeling confident with B) 12.5. Anything higher than that and the supply chain team is really dropping the ball, am I right?

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Jill

5 months ago

I think B) 12.5 is the correct answer.

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Kris

7 months ago

Ah, the good old mean absolute deviation. I bet it's gonna be a close one between B) and C). Gotta really crunch those numbers, you know?

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Alberto

5 months ago

I think the answer is B) 12.5

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Bulah

7 months ago

Wait, isn't the mean absolute deviation supposed to be the average of the absolute differences between the actual and forecast values? I'm going with B) 12.5.

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