WBJEE · Maths · Probability
The probability that at least one of \(A\) and \(B\) occurs is 0.6 . If A and \(B\) occur simultaneously with probability 0.3 , then \(P^{\prime}\left(A^{\prime}\right)+P_{(}\left(B^{\prime}\right)\) is
- A 0.9
- B 0.15
- C 1.1
- D 1.2
Answer & Solution
Correct Answer
(C) 1.1
Step-by-step Solution
Detailed explanation
\begin{array}{cl} \text { Hints: } \mathrm{P}(\mathrm{A} \cup \mathrm{B})=0.6 & \mathrm{P}(\mathrm{A})+\mathrm{P}(\mathrm{B})=\mathrm{P}(\mathrm{A} \cup \mathrm{B})+\mathrm{P}(\mathrm{A} \cap \mathrm{B})=0.9 \\ \mathrm{P}(\mathrm{A} \cap \mathrm{B})=0.3 &…
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