Set Notation What is set notation? Set?notation?is a formal way of writing groups of numbers (or other mathematical entities such as shapes) that share a common feature – each number in a set is ca...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：6.1.2 Magnetic Fields Magnetic Field Lines All magnets are surrounded by a?magnetic field A magnetic field is defined as: The region ar...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：6.1.1 Magnetism The Law of Magnetism Poles of a Magnet The ends of a magnet are called?poles Magnets have two poles: a?north?and a?south  ...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：5.2.6 Boyle's Law Boyle's Law For a fixed mass of a gas held at a constant temperature: pV?= constant Where: p?= pressure in pas...
Tree Diagrams What is a tree diagram? A?tree?diagram?is used to show the (combined)?outcomes?of more than one?event?that happen one after the other help calculate probabilities when?AND?and/or?OR’s...
Venn Diagrams What is a Venn diagram? A Venn diagram is a way to illustrate?events?from an?experiment?and are particularly useful when there is an overlap (or lack of) between possible?outcomes A V...
Probability Basics What do I need to know about probability for AS and A level Mathematics? The language used in probability can be confusing so here are some definitions of commonly misunderstood ...
Hypothesis Testing for Correlation You should be familiar with using a?hypothesis test?to determine bias within probability problems. It is also possible to use a hypothesis test to determine wheth...
Product Moment Correlation Coefficient (PMCC) What is the product moment correlation coefficient? The product moment correlation coefficient (PMCC) is a way of giving a numerical value to?linear co...
