1)You take a test, and 60% pass the first time and 40% fail.
The second time around,80% pass the test and 20% fail.
The third time, 90% pass and 10% fail.
a. What is the probability that you pass on the 2nd time?
b. What is the probability that you pass on the 3rd time?
c. What is the probability you fail?
Answers were Sorted based on User's Feedback
Answer / vinod
a.Passing in the 2nd attempt = Fail on first AND Pass in 2nd = 0.4*0.8=0.32 or 8/25.
b.Passing in the 3rd attempt = Fail 1st AND Fail 2nd AND pass 3rd = 0.4*0.2*0.9 = 0.072 = 9/125
c.Failing after 3 attempts = Fail 1st AND Fail 2nd AND Fail 3rd = 0.4*0.2*0.1 = 0.008 = 1/125
|Is This Answer Correct ?||64 Yes||2 No|
Answer / nagaraj
|Is This Answer Correct ?||1 Yes||5 No|
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