Question 61
MediumOriginal question2% of the pens a machine makes are faulty. Using the Poisson distribution, what is the probability that a pack of 100 pens has no faulty pen? (Take .)
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
.
.
Worth noting
0.98 is the chance that one pen is good, not all 100.
- Concept
- Poisson as an approximation to the binomial
- Typical timeTypical
- 90 s
- Your timeYours
- —
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