Question

In a hurdle race, a runner has probability p of jumping over a specific hurdle. Given that in 5 trials, the runner succeeded 3 times, the conditional probability that the runner had succeeded in the first trial is

Solution

Correct option is

3/5

Let A denote the event that the runner succeeds exactly 3 times out of five and B denote the event that the runner succeeds on th first trial.

                   

But P(B ∩ A) = P (succeeding in the first trial and exactly once in two other trials)

                                 

         

    

 

SIMILAR QUESTIONS

Q1

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Q2

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Q3

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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Q10

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