1. Suppose that the three inspectors at a film factory are supposedto stamp the expiration data on each package of film at the end ofassembly line. John , who stamps 25% of the packages, fails to stampthe expiration date once in every 200 packages, Tom , who stamps60% of the packages, fails to stamp the expiration date once in every100 packages, Jeff, who stamps 15% of the packages, fails to stamp theexpiration date once in every 90 packages. If a customer complains thather package does not show the expiration date, what is the probabilitythat was inspected by John?2.Ten people are randomly seated at round table. What is the prob-ability that a particular couple will seat next to each other?3.The life span in hours of an electrical component is a randomvariable with cumulative distribution function
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