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lianna [129]
2 years ago
9

Let A and B be two disjoint events such that P(A) = 0.47 and P(B) = 0.3. What is P(A or B)?

Mathematics
2 answers:
Alchen [17]2 years ago
6 0
<h3>Answer:  0.77</h3>

Work Shown:

P(A or B) = P(A) + P(B)

P(A or B) = 0.47 + 0.30

P(A or B) = 0.77

Notes:

  • The formula only works if A and B are disjoint, aka mutually exclusive
  • If A and B are not disjoint, then use this formula: P(A or B) = P(A) + P(B) - P(A and B)
GrogVix [38]2 years ago
4 0

Answer:

P(A or B) = 0.77

Step-by-step explanation:

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