Chen19241
29.08.2019 •
Mathematics
P(a) = 0.50, p(b) = 0.30, and p(a and b) = 0.15. what is p(a or b)?
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Ответ:
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 0.5 + 0.3 - 0.15
P(A or B) = 0.80 - 0.15
P(A or B) = 0.65
The answer is B.
Ответ:
answer:
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step-by-step explanation: