Probability

[danjuma]

If events A and B are independent, is the probability of both events occuring less than 0.4?

1.The probability of event A occuring is 0.5

2.The probability of event B occuring is 0.3

[shovan85]

If events A and B are independent, is the probability of both events occuring less than 0.4?

1.The probability of event A occuring is 0.5

2.The probability of event B occuring is 0.3

IMO C

[limestone]

We are asked about the possibility of both events. So P = P(A)*P(B)

1. P(A) = 0.5, we do not have P(B), and P(B) can be 1 or 0.3 then P can be 0.5 or 0.15
Then this is not sufficient to know whether P >0.4

2. P(B)=0.3<0.4, moreover P(A) always <= 1
Then P(B)*P(A) <=0.3
Then P<0.4
Thus 2 is suf.

Pick B.

[deepak123gmat]

DANJUMA what's OA?

[diebeatsthegmat]

If events A and B are independent, is the probability of both events occuring less than 0.4?

1.The probability of event A occuring is 0.5

2.The probability of event B occuring is 0.3

is B the answer?
Pa < 1 and Pb=0.3 thus Pa*Pb<o.3 thus B is sufficient