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At a particular time, three components are in series and each has a reliability of 0.98. What is the reliability of the system?
Suggested Answer: A
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49 comments · newest first
AJ
Aja
11 months ago
I thought it would be higher than that.
VO
Vonda
11 months ago
Yep, 0.98 for each, but in series, it drops!
SU
Sueann
11 months ago
Wait, how does that even work? Sounds off.
EV
Eve
11 months ago
Totally agree, it's 0.94!
SH
Shanda
12 months ago
The reliability is actually 0.94 for three components in series.
AN
An
12 months ago
I think I saw a similar question where the reliability dropped significantly with more components. Maybe it's closer to 0.94?
DE
Deandrea
12 months ago
I feel like the answer might be lower than 0.98 since they are in series, but I’m confused about the actual calculation.
DA
Darrel
1 year ago
I remember a practice question where we had to multiply the reliabilities, but I can't recall the exact numbers.
CL
Clare
1 year ago
I think the reliability of components in series is multiplied together, but I'm not entirely sure how to calculate that.
RE
Reiko
1 year ago
Hmm, I'm a bit unsure about this one. I'll need to carefully read through the details and think through the possible causes step-by-step. Compression can be tricky, so I'll need to make sure I understand the full context before selecting an answer.
MI
Millie
1 year ago
Okay, I think I see what's going on here. Let me re-read the requirements and then take a closer look at the diagram.
CL
Clorinda
1 year ago
I'm pretty sure the answer is B. The alt attribute is required for accessibility and to validate the HTML5 page.
KA
Kathrine
1 year ago
I remember we discussed OOAD being closely related to service-orientation; it feels like a possible influence.
OR
Oretha
1 year ago
I wonder if the exam question has a reliability of 0.98 as well. Gotta watch out for those hidden puns!
UN
Una
1 year ago
Hey, at least it's not a trick question! Or is it...?
LO
Lonny
1 year ago
E) none of the above
SH
Sherita
1 year ago
D) 0.26
MA
Margarett
1 year ago
C) 0.37
TR
Trina
1 year ago
B) 0.94
LA
Lavonna
1 year ago
A) 0.98
DI
Diego
1 year ago
Hold on, I'm getting my calculator out. This is going to require some serious number crunching.
AL
Alline
1 year ago
E) none of the above
CO
Cordell
1 year ago
D) 0.26
SH
Shayne
1 year ago
C) 0.37
SH
Shelba
1 year ago
B) 0.94
AL
Alison
1 year ago
A) 0.98
CO
Colby
1 year ago
Hmm, let me think... If the reliability of each component is 0.98, the system reliability must be lower, right?
AL
Albert
1 year ago
So, the answer would be B) 0.94.
AR
Armando
1 year ago
The reliability of the system in this case would be 0.98 * 0.98 * 0.98 = 0.941192, which is approximately 0.94.
BE
Bernadine
1 year ago
Yes, that's correct. The system reliability will be lower than the reliability of each individual component.
MA
Maia
1 year ago
Ah, the good old series reliability calculation. This should be a piece of cake!
RO
Rolland
1 year ago
Actually, it's A) 0.98.
MI
Minna
1 year ago
E) none of the above
DO
Dominga
1 year ago
Incorrect, try again.
AL
Alayna
1 year ago
B) 0.94
TA
Tamala
1 year ago
Great, that's correct!
TU
Tula
1 year ago
A) 0.98
GL
Glenn
1 year ago
Incorrect, try again.
LU
Lucy
1 year ago
E) none of the above
RI
Rickie
1 year ago
Incorrect, try again.
AN
Annalee
1 year ago
B) 0.94
AS
Ashton
1 year ago
That's correct!
TY
Ty
1 year ago
A) 0.98
MA
Marion
1 year ago
Yes, that makes sense. So the reliability of the system would be 0.98 * 0.98 * 0.98, which is 0.942.
MA
Malcom
1 year ago
I agree with Ronald, because the components are in series, so we multiply the reliabilities.
RO
Ronald
1 year ago
I think the answer is A) 0.98.
BR
Brett
2 years ago
I'm not sure about that. Shouldn't we multiply the reliabilities of each component to get the overall reliability?
AD
Adelle
2 years ago
I agree with Chanel. Each component has a reliability of 0.98, so the overall reliability should also be 0.98.
CH
Chanel
2 years ago
I think the answer is A) 0.98.