1.
Expectation
Note that the variance does not behave in the same way as expectation when we multiply and add constants to random variables. In fact: ...
2.
Expectation
Note that the variance does not behave in the same way as expectation when we multiply and add constants to random variables. In fact: ...
3.
A-Level Maths Revision
Pure Mathematics, Statistics and Mechanics Revision Notes for A-Level students. For simpler topics, please see the GCSE section. Pure Mathematics Section ...
4.
Algebraic Long Division
With algebraic long division, practise makes perfect- the best way to learn how to do them properly is to do loads of examples until you get them ... The factor theorem is important because it can be an easy way of finding factors that ...
5.
Sin, Cos and Tan
Also notice that the graphs of sin, cos and tan are periodic. This means that they repeat themselves. Therefore sin(ø) = sin(360 + ø), for example. ...
6.
Expectation
You is because: Var[aX + b] = E[ (aX + b)2 ] - (E [aX + b])2 . = E[ a2X2 + 2abX + b2] - (aE(X) + b)2 = a2E(X2) + 2abE(X) + b2 - a2E2(X) - 2abE(X) - b2 ...
7.
Practice questions
GCSE Maths. Home · Discussion & Help Forum · Revision Guides · Links & Revision Tips · Formula Sheet · Specimen Papers ... Practice Exam Paper ...
8.
Revision Tips & Links
The best thing to do is read a page of notes, then test yourself by writing down the ... A Level and GCSE Maths Questions Answered (send in your questions) ...
9.
Practice questions
GCSE Maths. Home · Discussion & Help Forum · Revision Guides · Links & Revision Tips · Formula Sheet · Specimen Papers ... Practice Exam Paper ...
10.
Practice questions
11th Mar 2009, © Matthew Pinkney 1999-2008. GCSE Maths. Home · Discussion & Help Forum · Revision Guides ... Practise Questions. Practice Exam Paper ...