What is the probability

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  1. 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 package, fails to stamp the expiration date once in every   200 package. 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, sails to stamps the expiration date once every 90 packages; and Paul, 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 John inspected it?

 

 

Reference no: EM13161010

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