$P (A) = \frac{2}{5}$ , $P (B ∣ A) = \frac{1}{5}$ and $P (B ∣ \overset{ˉ}{A}) = \frac{2}{5}$ . What is $P (A ∣ B)$ ?

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A trial succeeds with probability $\frac{1}{4}$ . It is repeated 4 times independently. What is the probability of exactly 1 success?
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$P (A) = \frac{2}{5}$ , $P (B ∣ A) = \frac{3}{5}$ and $P (B ∣ \overset{ˉ}{A}) = \frac{2}{5}$ . What is $P (A ∣ B)$ ?
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$P (A) = \frac{2}{5}$ , $P (B ∣ A) = \frac{1}{2}$ and $P (B ∣ \overset{ˉ}{A}) = \frac{2}{5}$ . What is $P (A ∣ B)$ ?

P(A) = 2/5, P(B|A) = 1/5 and… | Državna Matura (Montenegro)