nbclassof2020 nbclassof2020
  • 12-10-2021
  • Mathematics
contestada

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)?

Respuesta :

jimthompson5910 jimthompson5910
  • 12-10-2021

Answer:  0.77

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)
Answer Link
danielwall700
danielwall700 danielwall700
  • 12-10-2021

Answer:

P(A or B) = 0.77

Step-by-step explanation:

Answer Link

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