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...
一直以來不管是在體制內還是國際課程，數理化始終都是讓大家頭疼的科目！最近，the british exams網站的這份調查結果，理科幾乎全上榜！ 圖源the british exams 為什么IGCSE理科科目比國內課程難？ 首先，IGCSE理...
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...
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: Box plots Can be used with ungrouped data of a single varia...
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?...
Frequency Tables In most cases in your statistics course, you will come across data that is presented in a?frequency table. These allow data to be summarised and make them easier to work with. Ungr...
Mean, Mode, Median What are mean, median and mode? Mean, median and mode are measures of?location A measure of location gives information about where data is in the number system Mean, median and m...
