Question

3. Given that P(A) = 0.4 and P(B) = 0.5, and P(A and B) = 0.16, determine P(B|A). (Points :
0.40
0.50
0.18
0.10

Answer 1

know the formula for P(A/B)??

Answer 2

P(B|A) = P(AB)/P(A)

Answer 3

i get confused

Answer 4

the formula for P(B/A) is P(A and B)/P(A)....now you have both the values,just plug in and find answer

Answer 5

more help please

Answer 6

Probability of A AND B = 0.4 x 0.5
=0.2

Then we can use the formula Pr(B|A) = Pr (A and B) / Pr (A)
= 0.2 / 0.4 = 0.5 which is option B. woo we did it

Answer 7

but P(A and B) is given nabsz.j...no need to calculate

Answer 8

oh whoops my bad

Answer 9

is tht answer wrong or right

Answer 10

use the formula and recalculate :)

Answer 11

still not getting?