Edexcel C4 june 2013 exam answers review
Find \( \int x^2e^x dx \)(5) Hence find the exact value of \( \int_{0}^{2} x^2e^x dx \)(2) ANSWER Use the binomial expansion to show that √(1 + x/1 – x) ≈ 1 + x...
Monthly Archive: July 2014
Probability formulae
In this article we shall explore how to use probability formulae to solve probability problems. Deriving probability formulae We can use the Venn diagram to derive the probability formulae [IMAGE] Let P(A) = a,...
Venn diagrams
This article explores Venn diagrams. Below is a list of facts you should know when working with Venn diagrams. Events can be represented graphically on Venn diagrams. Venn diagrams are named after Hill born...
Probability
In these series of articles we shall explore probability. We shall explore how to solve probability problems using Venn diagrams, using probability formulae, solve problems using conditional probability and how to use tree diagrams....
Histograms
In this article we shall look at representing data in a histogram. Continuous data can be represented on a histogram. We use group frequency distribution tables to summarise the data before constructing histograms. Histograms...
Edexcel C4 june 2012 exam answers review
[loop type=”question” series=”1-20″ key=”index” id=”6583″] [content field=”index”][content] [/loop] [IMAGE] Find the values of the constants A, B and C. Hence find \( \int f(x) dx \). (4) Find \( \int_{0}^{2} f(x) dx \), leaving...
Stem and leaf diagrams
In this article we shall explore the steam and leaf diagrams. A stem and leaf diagram can be used to order or present data given to two or three significant figures. Each observation is...