Answer: Probability that Box A was chosen given that black marble is chosen is 0.5.
Step-by-step explanation:
Since we have given that
Number of boxes = 2
In Box A,
Number of black marbles = 1
Number of white marbles = 3
In Box B,
Number of black marbles = 2
Number of white marbles = 4
Since black marble is selected.
So, using Bayes theorem , we get that

Hence, probability that Box A was chosen given that black marble is chosen is 0.5.
Okay so just put the 4 in for x
and multiply
Answer:
GENDER YOUR WHAT, IF WOMEN, LET TO ' DO
SEX
I think it would be D that’s what I think
First subtract 9/4 from each side
1/2b=-2/4
Simplify the 2/4
1/2b=-1/2
Divide each side by 1/2
b = -1