codman385 codman385

17-08-2020
Mathematics

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Find the missing probability. P(B)=1/2,P(A∩B)=7/40,P(A|B)=? A. 2/5 B. 7/20 C. 1/2 D. 7/40

Respuesta :

Ankit221005 Ankit221005

17-08-2020

Answer:

Option (B) : 7 / 20

Step-by-step explanation:

[tex]P(A∩B)=P(B) \times P(A|B)[/tex]

[tex]P(A|B) = \frac{P(A∩B)}{P(B)} = \frac{7}{40} \times \frac{2}{1} = \frac{7}{20} [/tex]

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