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BluFootBest ResponseYou've already chosen the best response.2
You mean 14 i and ii? There's no (c) and (d). I got 1/25 for i and 1/5 for ii
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
Oh wait. Q13 (c) and (d)
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
And how you got that for Q14?
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
13C I got 10/16 and 13D I got 14/16
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
Oops meant 1/5 for 14 i
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
There are 25 possibilities right? 0 then 0, or 0 then 1, or 0 then 2 etc. 5 of them have the same number on both days: (0,0), (1,1), (2,2), (3,3), (4,4). So the probability is 5/25=1/5.
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
Same idea with 14 ii. There are 25 possibilities. 5 of them have a total of 4: (0,4), (1,3), (2,2), (3,1), (4,0)
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
I got right for 13(c).
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
I don't get 14 one. Sorry. :/
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
Make a probability tree with all the possibilites if you want. Like this, except there should 0,1,2,3,4 at the end of each of the 5 branches. dw:1354320893329:dw You can see there are 25 possibilities. How many of them have the same number on each day?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
dw:1354321015621:dw
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
There's one of them. Except you did the probability wrong, it's 1/5=0.2 not 0.1.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
No. In the table it's given 0.1
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
OOOHHHHHH I completely forgot about the probabilities!! I'm sorry :P I was assuming each day had the same probability! I'll look at it again
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
No problem. Sure. :)
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
Yeah so you're on the right track. The probability of 4 on each day is 0.1*0.1=0.01. Now do the same for the other numbers.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
Perfect. What about part(ii) ?
 one year ago

BluFootBest ResponseYou've already chosen the best response.2
Now you want to look at all the possibilites that add up to 4. So: (0,4), (1,3), (2,2), (3,1) and (4,0) Find the probabilities of each of those and add them together.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.0
Got'ya. Thanks a ton.
 one year ago

angelpattersonBest ResponseYou've already chosen the best response.0
Ok well that's a really long conversation.Why isn't it closed?
 one year ago
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