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 ...
A-Level是英国高中课程，也是英国大学入学考试，同时，A-Level成绩也被全球众多国家的高校认可。 A-Level多达70多门课程，主要分为： 1.核心基础课程：主要有数学、物理、化学、生物、地理; 2.核心基础课程的延伸...
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...
在一堆国际考试中，Alevel课程被认定为是最简单的课程之一。那么，“简单”的Alevel课程能不能自学呢？ 事实上，A-Level是可以自学的，但是难度会相对大一些，而且对学生自律性的要求会比较严格。那么，首先我们先...
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 ...
Skewness The distribution of a data set is either symmetrical or it has skewness. What is skewness? Skewness describes the way in which data in a non – symmetrical distribution is leaning A distrib...
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...
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...
