Venn Diagrams What is a Venn diagram? A Venn diagram is a way to illustrate events and are particularly useful when outcomes overlap Venn diagrams are mostly used for 2 or 3 events A Venn diagram c...
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 ...
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...
Histograms What is a histogram? A histogram is similar to a bar chart but with some key differences A histogram is for displaying grouped continuous data whereas a bar chart is for discrete or qual...
Box Plots What is a box plot? A box plot is a graph that clearly shows key statistics from a data set It shows the median, quartiles, minimum and maximum values and outliers It does not show any ot...
Stem and Leaf Diagrams What is a stem and leaf diagram? A stem and leaf diagram shows ALL RAW data and groups it into class intervals Stem and leaf diagrams lend themselves to two-digit data but ca...
科研背景提升项目对国际学生的作用有哪些？不太了解留学的家长、同学，可能对“背景提升”这个词有点陌生。其实，“背景提升”是申请环境越来越激烈的一个产物，就是提升申请者的综合竞争力，因为在申请院校的时候既...
2022年真是波折的一年，随着疫情反复，国内不少城市的AP考试相继取消。好多准备今年参加AP考试的学生不得不把计划延至明年，甚至是其他城市。这也意味着，参加2023年AP考试的人数即将上涨，只有早做准备，才能备...
Data Presentation What graphs and diagrams should I be familiar with? You will be expected to be able to use a variety of graphs such as: Stem-and-leaf diagrams Can be used with ungrouped data of ...
Coding Sometimes data needs to be coded for further use with calculations. This is particularly useful with data that deals with very small or very large numbers, or with data that needs to be clas...
Standard Deviation & Variance The variance is another measure for the spread of the data, it measures the variability from the mean of the data. What is the variance and the standard deviation?...
