You are Here: Home >< Maths

HELP! edexcel statistics (S1) watch

1. I'm stuck on question 2(b) of the January 2012 paper.
I think I need to find 'P(A *intersect* B)' but I don't know how.
The only thing I can think of to use is the addition rule, but I have 2 unknowns.

This was posted from The Student Room's iPhone/iPad App
2. (Original post by neev94)
I'm stuck on question 2(b) of the January 2012 paper.
I think I need to find 'P(A *intersect* B)' but I don't know how.
The only thing I can think of to use is the addition rule, but I have 2 unknowns.

This was posted from The Student Room's iPhone/iPad App
means B intersect not A, this means you need P(B)x3/4
3. I know, but that's part (c), I haven't even got that far yet
These are what I know so far
P(A)= 1/4
P(A *union* B)= 2/3
P(A' *intersect* B')= 1/3

Part (b) is to find P(B), but I don't know how

This was posted from The Student Room's iPhone/iPad App

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:
Updated: March 12, 2013
Today on TSR

Buying condoms for the first time - help!

Discussions on TSR

• Latest
Poll
Useful resources
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE