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Andre45 [30]
3 years ago
5

Given 2 events a and b, and that p(a)=0.30, p(b)=0.45, p(a u b)=0.60. find the probability p(a∩b).

Mathematics
1 answer:
pickupchik [31]3 years ago
3 0
P(a U b) = p(a) + p(b) - p(a ∩ b)

<=>

p(a ∩ b) = p(a) + p(b) - p(a U b)

I let you do the maths :)
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Answer:

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Step-by-step explanation:

<h3>I will use the elimination method.</h3>

We want to make the X's the same:

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Because the signs of the X's are the same we subtract the 2 equations to make:

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Substitute y into either equation 1 or 2:

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