keyannadejuan7264 keyannadejuan7264

06-07-2018
Mathematics

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Use the given information to find the indicated probability.p(a ∪
b.= .9, p(b) = .8, p(a ∩
b.= .4.find p(a).p(a) = incorrect: your answer is incorrect.

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LammettHash LammettHash

06-07-2018

[tex]P(A\cup B)=P(A)+P(B)-P(A\cap B)[/tex]
[tex]0.9=P(A)+0.8-0.4\implies P(A)=0.5[/tex]

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