Among the participants in a survey,

* 30% live in the suburbs

* 50% are over 40 years old

One participant is selected at random. The chance that the participant lives in the suburbs and is over 40 years old is

[Pick just one option - the sharpest bound that can be justified based on the information given.]

Question

Among the participants in a survey,

* 30% live in the suburbs

* 50% are over 40 years old

One participant is selected at random. The chance that the participant lives in the suburbs and is over 40 years old is

[Pick just one option - the sharpest bound that can be justified based on the information given.]

anonymous · Answer

if you are to assume that these are independent events, then it would be $0.5\times 0.3=0.15$ but it seems unlikely that they are independent

anonymous · Answer

yea it seems so and i am just stuck on this question. So help me with this. Option for sharpest bound include, 0%, 15%, 30%. 50% and 100%