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The probability that a candidate passes a certain professional examination is 0.7.docx

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Nadeem Uddin
Nadeem Uddin

The probability that a candidate passes a certain professional examination is 0.7. Find the probability that a candidate would pass the examination before the fourth attempt.

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The probability that a candidate passes a certain professional examination is 0.7. Find the probability that a candidate would pass the examination before the fourth attempt. Solution = 倹 = . = 巨 = . = . Let A = Candidate would pass the examination before the fourth attempt. () = 咋 () = + + () = . + (.)(.) + (.)(.)(.) () == .

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The probability that a candidate passes a certain professional examination is 0.7.docx

  • 1. The probability that a candidate passes a certain professional examination is 0.7. Find the probability that a candidate would pass the examination before the fourth attempt. Solution = 倹 = . = 巨 = . = . Let A = Candidate would pass the examination before the fourth attempt. () = 咋 () = + + () = . + (.)(.) + (.)(.)(.) () == .