can anyone help me i will give a medal!!

Question

anonymous · Answer

sure what is your question

ashontae19 · Answer

Anyone can they please try??????

kropot72 · Answer

Just to confirm your understanding, can you complete the definition of independence:
$$\large P(A \cap B)=?$$

ashontae19 · Answer

yes

kropot72 · Answer

What is the right hand side of the definition? Please post it here.

ashontae19 · Answer

=0.75

ashontae19 · Answer

for the first one correct?

kropot72 · Answer

I think you should post the definition of independence of events A and B before we continue.

kropot72 · Answer

The definition of independence is as follows:
Events A and B are independent if and only if$$\large P(A\cap B)=P(A) \times P(B)$$
Using this definition, are the events in 1a independent?

kropot72 · Answer

It appears from your answers that either you are guessing or you do not understand the definition of independence (or both).

ashontae19 · Answer

Im not guessing thats the answers i got

kropot72 · Answer

Well how did you get the answer 'dependent' for 1a ?

ashontae19 · Answer

.45(30)=.135 that cancels out .75 so its not independent

kropot72 · Answer

The correct explanation for 1a is as follows:

P(A) = 0.45   P(B) = 0.3
If events A and B were independent
$$\large P(A) \times P(B)=0.135$$
However A intersection B = 0.75, therefore the events are dependent.

ashontae19 · Answer

can you help me on two more

kropot72 · Answer

Sorry, i have to log out now. I hope I have helped you.