x

## Unlock these great extras with your FREE membership

• One-on-one advice about results day and Clearing
• Free access to our personal statement wizard
• Customise TSR to suit how you want to use it
 You are Here: Home

# The Dressing Room X

Announcements Posted on
Find your uni forum to get talking to other applicants, existing students and your future course-mates 27-07-2015
Win top prizes in our mega results day giveaway... 24-07-2015
1. (Original post by Deshi)
Does this make sense? My notes are contradicting each other and it is pissing me off......

P(Not A n B) = P(B) - P(A n B) ????????

The 'Not A' is basically the compliment of A, I just don't know how to do an A with a line on top

I am bare confused.
That does make sense.

If you're ever confused, consider two dice.

Let A be 'roll a 3 on dice 1' with probability 1/6, ao NOT A = 5/6.

Let B be 'roll an even on dice 2) with prob 1/2.

Then P(NOT A n B) = 5/6*1/2 = 5/12.

P(B)-P(AnB) = 1/2 - 1/2*1/6 = 5/12.

[for completeness, let event A have probability a (so NOT A has prob (1-a)) and event B have probability b. Then you can show LHS = RHS]
2. Ugh, equations
3. (Original post by cloop)
Ugh, equations
Ugh, Portuguese.
4. (Original post by marcusmerehay)
That does make sense.

If you're ever confused, consider two dice.

Let A be 'roll a 3 on dice 1' with probability 1/6, ao NOT A = 5/6.

Let B be 'roll an even on dice 2) with prob 1/2.

Then P(NOT A n B) = 5/6*1/2 = 5/12.

P(B)-P(AnB) = 1/2 - 1/2*1/6 = 5/12.

[for completeness, let event A have probability a (so NOT A has prob (1-a)) and event B have probability b. Then you can show LHS = RHS]
Cheers for that mate

I'll rep you when I can, doesn't let me atm as I must've repped you recently
5. (Original post by marcusmerehay)
Ugh, Portuguese.
Leave the Portuguese alone (Unless it's Portugal Portuguese).
6. (Original post by marcusmerehay)
Ugh, Portuguese.
Nando's
7. Marcus Merehay (why that, btw?) I wasn't speaking Portuguese you silly sosij. But I can start, if you want? <3
8. (Original post by cloop)
Marcus Merehay (why that, btw?) I wasn't speaking Portuguese you silly sosij. But I can start, if you want? <3
Merehay Lane is the name of the road I live on at home. Dunno, just sort of fits.

You can talk to me however you like, behbeh.
9. His real surname is too ****ing surreal, as I've told him on multiple occasions.
10. I'm gonna have to visit the place eventually, out of curiosity.
11. Marcus, what IS your surname? As of course, I have no idea.

;-)

p.s haha you're such a creepy creeperson, I might have to set Ish on you
12. I thought you meant Brazil
13. (Original post by cloop)
Marcus, what IS your surname? As of course, I have no idea.

;-)

p.s haha you're such a creepy creeperson, I might have to set Ish on you
Please don't, she'd destroy me.
14. (Original post by Colonel.)
His real surname is too ****ing surreal, as I've told him on multiple occasions.
It's Smith, isn't it?
15. Also, Marcus, you are such an advertisement for who you are and where you live haha
16. (Original post by Colonel.)
I thought you meant Brazil
I'm confused
17. (Original post by cloop)
I'm confused
I thought Marcus meant Brazil, not what his link led to.
18. (Original post by cloop)
Also, Marcus, you are such an advertisement for who you are and where you live haha
How so?
19. (Original post by marcusmerehay)
How so?
20. (Original post by cloop)
What can I say, I just put myself out there.
Updated: December 25, 2012
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Poll
Results and Clearing

### Results are coming...

No sweat. Here's all you need to make sure you're ready

Study resources
Useful resources