Question

There are two computers and a printer. Consider the following events: A = {first computer works},...

There are two computers and a printer. Consider the following events: A = {first computer works}, B = {second computer works}, C = {the printer works}. The system is functioning if at least two of {first computer,second computer,printer} are working. Express this event in terms of A,B and C.

Math   Statistics-And-Probability   
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Answer #1

Given that

A = {first computer works}, B = {second computer works}, C = {the printer works}.

The system is functioning if at least two of {first computer,second computer,printer} are working. That is we can say that the system is functioning if

  • {first computer works, second computer works}, or
  • {first computer works, the printer works}, or
  • {second computer works, the printer works} or
  • {first computer works,second computer works, the printer works}

ans: We can express the event the system is functioning as

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