+0  
 
-1
2606
1
avatar+59 

Consider two events such that P(A) = 1/4 , P(B) = 2/3 , and P(A ∩ B) = 1/5 . Are events A and B independent events?

 

Yes, they are independent because P(A) ⋅ P(B) = P(A ∩ B)

No, they are dependent because P(A) ⋅ P(B) = P(A ∩ B)

Yes, they are independent because P(A) ⋅ P(B) ≠ P(A ∩ B)

No, they are dependent because P(A) ⋅ P(B) ≠ P(A ∩ B)

 Apr 26, 2018
 #1
avatar+128474 
+1

For the events to be independent

 

P(A) * P(B)  =   P ( A and B)

 

( 1/4) * (2/3)  =  2 / 12  =  1/6

 

But  P ( A and B )  =   1/5

 

So....they are dependent events  and  "D"  is correct

 

cool cool cool

 Apr 28, 2018

1 Online Users

avatar