Question

Find P(B/A)???

When p (a) = 0.3

P(b) = 0.4

Answer 1

0.4/0.3
10*4/10*3
4/3 .....

Answer 2

$\textbf{Hey there}$!


$\textbf{Solution}$:

$<b>$

Firstly, We have to find P(A ∩ B)


Here P(A) = 0.3

P(B) = 0.4

We have to find P(A ∩ B)

Formula of P(A ∩ B) = P(A).P(B)......(1)

Putting the Valuea of P(A) and P(B) in eqn.(1)


P(A ∩ B) = 0.3 × 0.4


= 0.12


The formula of P(B/A) = P(A ∩ B)/P(A)

= 0.12/0.3

= 0.4



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