Edexcel IGCSE Physics: Double Science 复习笔记：5.2.6 Boyle's Law
Edexcel IGCSE Physics: Double Science 复习笔记：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...
Edexcel A Level Maths: Statistics:复习笔记3.1.3 Tree Diagrams
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...
Edexcel A Level Maths: Statistics:复习笔记3.1.2 Venn Diagrams
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...
Edexcel A Level Maths: Statistics:复习笔记3.1.1 Calculating Probabilities & Events
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 ...
Edexcel A Level Maths: Statistics:复习笔记2.5.2 Hypothesis Testing for Correlation
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...
Edexcel A Level Maths: Statistics:复习笔记2.5.1 PMCC & Non-linear Regression
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...
Edexcel A Level Maths: Statistics:复习笔记2.4.1 Correlation & Regression
Scatter Diagrams What does bivariate data mean? A lot of statistics is about looking at how different factors, or variables change how data behaves Bivariate data is data which is collected on two ...
Edexcel A Level Maths: Statistics:复习笔记2.3.2 Intrepreting Data
Interpreting Data You may be asked to comment on how statistics could affect data or how removing or adding a new piece of data could change statistics you have calculated. You may also be asked to...
Edexcel A Level Maths: Statistics:复习笔记2.3.1 Outliers & Cleaning Data
Outliers What are outliers? Outliers are extreme data values that do not fit with the general pattern of the data They can come from one or two extreme events or from mistakes in the data collectio...
