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You have been asked to sample a lot of 500 units from vendor whose past quality has been about 2% defective. A sample of 40 pieces is drawn from the lot and you have been told to reject the lot if you find two or more parts defective. What is the probability of finding two or more parts defective?
Suggested Answer: C
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8 comments · newest first
CO
Corrina
11 months ago
I’m surprised it’s that likely to find two or more defects!
XU
Xuan
12 months ago
Totally agree, A makes sense based on the numbers!
MA
Mariann
12 months ago
Wait, how can the probability be that high? Sounds off.
GE
Georgeanna
12 months ago
I think the answer is A, that seems way too high!
LA
Lang
1 year ago
The defect rate is 2%, so we should expect about 0.8 defects in a sample of 40.
CO
Corrina
1 year ago
I think the key here is the requirement for 24-hour availability and the ability to control the failover process. That rules out cold standby, which can take a long time to bring online. I'm leaning towards active/active or hot standby as the best options.
SH
Shayne
1 year ago
This looks like a straightforward question about modifying the logic for calculating incident priority. I think the key is to focus on the options provided and think through the implications of each one.
IR
Ira
1 year ago
Man-in-the-middle attacks seem serious for any network, but are they specifically a top issue for wireless?