If $P(A) = 0.3$, then $P(A')$ is

If $P(A) = 0.3$, then $P(A')$ is
  1. $0.7$
  2. $0.3$
  3. $1.3$
  4. $0.6$

Solution

$P(A') = 1 - 0.3 = 0.7$.

Asked in: MH-SSC-9

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