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Calculate the estimated variance of the population from which the following values have been randomly selected:
2.8 2.7 2.6 2.9 2.8 2.8 2.8:
Suggested Answer: F
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28 comments · newest first
KA
Kallie
10 months ago
Not sure about that, could it be B instead?
RO
Rosio
11 months ago
Totally agree, D seems correct!
HI
Hildred
11 months ago
Wait, is the variance really that small?
RI
Ricki
11 months ago
I think it's option D, looks right to me!
TY
Ty
11 months ago
The mean is 2.8, so variance should be low.
KE
Kerrie
12 months ago
I vaguely recall that the variance is the average of the squared differences from the mean. I hope I remember the steps correctly!
TY
Tyra
12 months ago
I feel like the variance should be pretty small since the numbers are so close together. Maybe option B or D could be right?
HU
Hui
12 months ago
I think I saw a similar question where we had to find variance from a small data set. I might lean towards option D, but I need to double-check my calculations.
BE
Bette
1 year ago
I remember we practiced calculating variance, but I'm not sure if I should use the sample or population formula here.
RU
Ruthann
1 year ago
Wait, what? I'm totally lost on this one. Variance? Deviations? I don't even know where to start. This is going to be a tough one for me.
PE
Pearlie
1 year ago
I've got this! Variance is just the average of the squared differences from the mean. I'll crunch the numbers and see which answer choice matches.
SA
Sang
1 year ago
Okay, let's think this through step-by-step. I'll need to calculate the mean, then the deviations from the mean, square those deviations, and finally take the average of the squared deviations to get the variance.
MI
Mira
1 year ago
Hmm, this looks tricky. I'm not sure I remember the exact formula for variance. Maybe I should review my notes quickly before attempting this.
SH
Shawna
1 year ago
Based on my understanding of how Dynamics 365 Business Central handles payment terms, the Due Date field is the one used to calculate the payment due date. I'll select B.
HE
Henriette
1 year ago
Variance? More like nightmarish mathematical torture. I should have studied statistics harder in college. Oh well, time to wing it!
IR
Irene
1 year ago
D) .008
NI
Nina
1 year ago
C) .088
LA
Lashunda
1 year ago
B) .009
KE
Keneth
1 year ago
A) .095
AD
Adelle
1 year ago
Hold on, I need to break out my calculator for this one. Can't be too careful with these formulas, you know? Fingers crossed I get it right!
TE
Telma
1 year ago
Ugh, these variance questions always get me. I'll just close my eyes and pick an answer. Maybe I'll get lucky this time!
TO
Tomas
1 year ago
I'm going with D) .008
TY
Tyra
1 year ago
I think the answer is C) .088
MA
Maryann
1 year ago
I'm not sure, but I think the answer might be A) .095
SH
Shawna
1 year ago
Wait, is this a trick question? I'm pretty sure the answer is not A or C, those values seem way off. B or D, that's my guess.
FA
Fallon
2 years ago
Hmm, let me see... I think the correct answer is D. Looks like a straightforward variance calculation to me.
AN
Annice
2 years ago
I agree with Mitzie, the estimated variance seems to be around .088
MI
Mitzie
2 years ago
I think the answer is C) .088