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There are 5 machines. Probability of a machine being faulted is 1/4 Probability of atmost two machines s faulted, is   k then value of k is 
  • a)
    17/2
  • b)
    4
  • c)
    17/8
  • d)
    17/4
Correct answer is option 'C'. Can you explain this answer?
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There are 5 machines. Probability of a machine being faulted is 1/4 Pr...
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There are 5 machines. Probability of a machine being faulted is 1/4 Pr...
Required probability = when no. machine has fault + when only one machine has fault + when only two machines have fault.



∴ k = 17/8
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There are 5 machines. Probability of a machine being faulted is 1/4 Probability of atmost two machiness faulted, isk then value of k isa)17/2b)4c)17/8d)17/4Correct answer is option 'C'. Can you explain this answer?
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