valeriabruh valeriabruh

03-05-2017
Mathematics

contestada

Use the given information to find the indicated probability.
P(A ∪ B) = .7, P(B) = .5, P(A ∩ B) = .3.

Find P(A).

Respuesta :

ghanami ghanami

05-05-2017

hello :
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
0.7 =P(A) + 0.5 - 0.3
P(A) = 0.7-0.5+0.3
P(A) = 0.5

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