Carcass wrote:
The probability that events A and B will both occur is 0.35.
Quantity A |
Quantity B |
The probability that event B will occur |
0.42 |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
I think if we have a condition that events
A and
B are independent, it would make more sense.
Case 1: Events
A and
B are not independent
Then the probability that the event
B occurs,
P(B) can be any value between
0 and
1, inclusive.
Case 2: Events
A and
B are independent.
Remind that if events
A and
B are independent each other, then we have
P(A∩B)=P(A)P(B).
We have
P(A∩B)=P(A)P(B)=0.35.
Then we may have
P(A)=1,P(B)=0.35 and
P(A)=0.35,P(B)=1.
We have two cases
P(B)<0.42 and
P(B)>0.42.
Therefore, D is the answer.