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Events A and B are independent with P(A) = 0.4 and P(B) = 0.5. Then P(A or B) is

1933Medium DSSSB TGT Computer Science 0 replies 1 views
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Events A and B are independent with P(A) = 0.4 and P(B) = 0.5. Then P(A or B) is

  • A0.7
  • B0.9
  • C0.2
  • D0.1
Correct answer: A

Explanation

P(A or B) = P(A) + P(B) - P(A)P(B) = 0.4 + 0.5 - 0.2 = 0.7.
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