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NDA 2019
Exam
NDA
Year
2019
Subject
Mathematics
Chapter
Probability

NDA 2019 · Mathematics · Probability

If A and B are two events, then what is the probability of...

If AA and BB are two events, then what is the probability of occurrence of either event A or event B ?

Options

  1. AP(A)+P(B)\mathrm{P}(\mathrm{A})+\mathrm{P}(\mathrm{B})
  2. BP(A∪B)\mathrm{P}(\mathrm{A} \cup \mathrm{B})
  3. CP(A∩B)\mathrm{P}(\mathrm{A} \cap \mathrm{B})
  4. DP(A)P(B)\mathrm{P}(\mathrm{A}) \mathrm{P}(\mathrm{B})

Correct answer

B. P(A∪B)\mathrm{P}(\mathrm{A} \cup \mathrm{B})

Step-by-step solution

Probability of occurence of either event A or event B=P(A∪B)B=P(A \cup B)
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