You are Here: Home >< Maths

# S1- Probability watch

1. Two events R and S are independent.
P(R|S)= 3/4 and P(S)= P(S' and R').
By letting x equal P(S)nand forming an equation for x, or otherwise, find
a) P(S)
b) P(S' and R)
c) Write down P(S|R)

I have no idea where to even begin on this =S
2. remember if two events are independent:

P(R|S) = P(R)

### Related university courses

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: November 9, 2008
Today on TSR

### University open days

Wed, 25 Jul '18
2. University of Buckingham
Wed, 25 Jul '18
3. Bournemouth University
Wed, 1 Aug '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams