MCQ
Let $A, B, C$ be three mutually independent events. Consider the two statements ${S_1}$ and ${S_2}$

${S_1}\,\,:\,\,A$ and $B \cup C$ are independent

${S_2}\,\,:\,\,A$ and $B \cap C$ are independent

Then

  • Both ${S_1}$ and ${S_2}$ are true
  • B
    Only ${S_1}$ is true
  • C
    Only ${S_2}$ is true
  • D
    Neither ${S_1}$ nor ${S_2}$ is true

Answer

Correct option: A.
Both ${S_1}$ and ${S_2}$ are true
a
(a) $B \cup C$ is independent to $A,$ so ${S_1}$ is true

$B \cap C$ is also independent to $A,$ so ${S_2}$ is true.

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