Statistics - Probabilities
37. Which of the following is correct?
- Option : A
- Explanation :
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38. Given two events A and Band
P(A) = 1/4, P(B/A) = 1/2
and P(A/B) = 1/4
State that following is true?
- Option : D
- Explanation :
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- Option : A
- Explanation :
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- Option : C
- Explanation : Expectation of X = E(X) = average = mean
where pi denote probability of occurrence of xi
Let q = 1-p
Then probabilities of succession 1st, 2nd, 3rd
trials are
p, qp, q2p,......
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