Answered

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P(A) = 1/2
P(ANB) = 1/5
What will P(B) have to be for A and B to be independent?
4/10
1/10
03/10
7/10

Sagot :

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Answer:

4/10

Step-by-step explanation:

If A and B are independent events, P(A∩B) = P(A).P(B)
Therefore, P(B) = P(A∩B) /P(A)

P(A∩B)  = 1/5, P(A) = 1/2

P(B) = 1/5 ÷ 1/2 = 1 /5 * 2/1 = 2/5 which is 4/10 if you multiply numerator and denominator by 2

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