Question
Asked Dec 10, 2019
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Find the indicated probability.
 
If​ P(A or ​B)equals=0.6, P(A)equals=0.5​, and​ P(A and ​B)equals=0.25​, find​ P(B).
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Expert Answer

Step 1

Given that

P (A or B) = 0.6

P (A) = 0.5

P (A and B) = 0.25

Find P (B)

Step 2
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P(Aor B) = P(AUB)= 0.6 P(A cmd B) = P(A OB)= 0.25 P(4) = 0.5 P(AUB) = P(4)+P(B)-P(A^B) 0.6 = 0.5+ P(B)-0.25 0.6+0.25 = 0.5+ P(B) 0.85 = 0.5+ P(B) P(B) = 0.85 – 0.5 P(B) = 0.35

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Math

Probability

Basic Probability

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