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Q11Section I (Objective (Q1–Q80))11 of 80

Probability — independence from a contingency table

The joint probability of the occurrence of two events AA and BB is given by the following contingency table:

BBˉA0⋅40⋅1 Aˉ0⋅20⋅3\begin{array}{c|cc} & B & \bar{B} \\\hline A & 0\cdot 4 & 0\cdot 1 \ \bar{A} & 0\cdot 2 & 0\cdot 3 \end{array}

Consider the following statements: I. AA and BB are independent events. II. P(A∣Bˉ)+P(Aˉ∣B)>12\mathbb{P}(A \mid \bar{B}) + \mathbb{P}(\bar{A} \mid B) > \frac{1}{2}. Which of the statements given above is/are correct?

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