Math, asked by Dhruvraj6150, 7 months ago

please answer , the question is from NDA 1 2013 maths

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Answered by bourai244

1

Step-by-step explanation:

_ _ _ _

p(A U B ) = P(A) + P(B) - P(AUB)

= 0.4 + 0.3 - 0.9

= 0.7 -0.9

= - 0.2

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