P(a)=0.40 p(b)= 0.50 p(a and b) = 0.10 what is p(b/a)?

plz

The answer is C, 0.25.

Step-by-step explanation:

In order to find the probability of (B | A), you need to use this formula:

Conditional Probability (A has already occured)

P(B | A) = P(A and B)

                      P(A)

If you subsitute in the values you get this:

P(B | A) = 0.10

               0.40

0.1 divided by 0.4 is equal to 0.25.

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