Suppose that the four inspectors at a ﬁlm factory are supposed to stamp the expiration date on each package of ﬁlm at the end of

Question

3 years ago

5

Suppose that the four inspectors at a ﬁlm factory are supposed to stamp the expiration date on each package of ﬁlm at the end of

the assembly line. John, who stamps 20% of the packages, fails to stamp the expiration date once in every 200 packages; Tom, who stamps 60% of the packages, fails to stamp the expiration date once in every 100 packages; Jeﬀ, who stamps 15% of the packages, fails to stamp the expiration date once in every 90 packages; and Pat, who stamps 5% of the packages, fails to stamp the expiration date once in every 200 packages. If a customer complains that her package of ﬁlm does not show the expiration date, what is the probability that it was inspected by John?

Mathematics

1 answer:

seropon [69] · Answer 1 · 2022-03-14T17:30:21+03:00

seropon [69]3 years ago

8 0

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