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IFoA Exam IFoA_CAA_M0 Topic 5 Question 62 Discussion

Actual exam question for IFoA's IFoA_CAA_M0 exam
Question #: 62
Topic #: 5
[All IFoA_CAA_M0 Questions]

For random variable X, use the following statistics to calculate its coefficient of skewness based on central moments.

E(X) = 3.940

E(X2) = 21.466

skew(X) = E[(X - )3] = 6.008

Show Suggested Answer Hide Answer
Suggested Answer: C

Contribute your Thoughts:

Hobert
5 months ago
Wait, is this exam going to be on 'skewness' or 'skewering' the competition? Either way, I'm ready to bring home the gold!
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Ocie
5 months ago
Alright, time to shine! Coefficient of skewness, eh? I bet the answer is hidden in those formulas they gave us. *squints eyes* Aha, C looks right to me. Although, I did hear the professor say something about 'skewness' and 'skewed' being similar. Maybe I should double-check that...
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Dorothy
4 months ago
I remember the professor mentioning 'skewness' and 'skewed' too. Let's double-check before we finalize our answer.
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Margurite
4 months ago
I think you're onto something with C. Let's calculate it together.
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Stefany
5 months ago
I calculated it and got -0.415. I think I made a mistake somewhere.
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Eladia
5 months ago
Coefficient of skewness, huh? I remember learning about this in my stats class. Time to put that knowledge to the test. *scratches head* Okay, let's see... I think I'm going with option C.
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Georgeanna
4 months ago
Option C seems to be the right choice.
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Lacresha
4 months ago
I'm going with option C too.
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Gilma
4 months ago
I think the answer is C.
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Abel
5 months ago
Based on the formula, it looks like the answer might be around 0.415.
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Mireya
5 months ago
Ooh, this is a tricky one. But I've got this! Plugging in the values, I'm getting 0.415. Better double-check my work, though. Don't want to be the one who gets it wrong and looks like a fool in front of the class.
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Gilma
5 months ago
I also got 0.415. Let's compare our steps to make sure we're correct.
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Jamika
5 months ago
I think I'm getting 0.060. Let me recheck my calculations.
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Chau
5 months ago
I got 0.415 too. Looks like we're on the right track.
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Stephanie
6 months ago
I agree. Let's use the central moments provided to find the skewness.
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Abel
6 months ago
I think we need to calculate the coefficient of skewness for random variable X.
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Stevie
6 months ago
Ah, the coefficient of skewness, a measure of the asymmetry in the distribution. Let's see, the formula involves the third central moment divided by the cube of the standard deviation. Hmm, I'm thinking C is the answer here.
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Meghann
5 months ago
Yes, C is the correct answer for the coefficient of skewness in this case.
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Fredric
5 months ago
I agree, C seems like the most appropriate choice based on the calculations.
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Mee
5 months ago
Yes, I think you're right. Let's go with C for the coefficient of skewness.
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Patria
5 months ago
I agree, C seems to be the most likely choice based on the statistics provided.
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Craig
5 months ago
Yes, I also calculated it and got C as the coefficient of skewness for random variable X.
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Audra
5 months ago
I agree, C seems to be the correct answer based on the statistics provided.
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