ashontae19
  • ashontae19
can anyone help me i will give a medal!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
sure what is your question
ashontae19
  • ashontae19
Anyone can they please try??????
kropot72
  • kropot72
Just to confirm your understanding, can you complete the definition of independence: \[\large P(A \cap B)=?\]

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ashontae19
  • ashontae19
yes
kropot72
  • kropot72
What is the right hand side of the definition? Please post it here.
ashontae19
  • ashontae19
=0.75
ashontae19
  • ashontae19
for the first one correct?
kropot72
  • kropot72
I think you should post the definition of independence of events A and B before we continue.
kropot72
  • kropot72
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
  • kropot72
It appears from your answers that either you are guessing or you do not understand the definition of independence (or both).
ashontae19
  • ashontae19
Im not guessing thats the answers i got
kropot72
  • kropot72
Well how did you get the answer 'dependent' for 1a ?
ashontae19
  • ashontae19
.45(30)=.135 that cancels out .75 so its not independent
kropot72
  • kropot72
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
  • ashontae19
can you help me on two more
kropot72
  • kropot72
Sorry, i have to log out now. I hope I have helped you.

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