Question

If P(A) = -5 and P(B) = .5, then P(A N B). a. is .25 d. 15.20 Www o b. is c.is1 1 bonne c. is l O d. Cannot be determined from the information given.

Answer 1

Solution:

Given that,

P(A) = 0.5

P(B) = 0.5

So,

P(A $\cap$ B) = P(A) * P(B)

= 0.5 * 0.5

= 0.25

P(A $\cap$ B) = 0.25

Solution:

Given that,

P(A) = 0.85

P(B) = 0.76

P(A $\cap$ B) = 0.72

P(A | B) = P(A $\cap$ B) / P(B)

= 0.72 / 0.76

=0.947

P(A | B) =0.95

Option b ) is correct.