Univariate data is data that is in?one variable. Box Plots What is a box plot (box and whisker diagram)? A box plot is a graph that clearly shows key statistics from a data set It shows the?median,...
Outliers What are outliers? Outliers are extreme data values that do not fit with the rest of the data They are either a lot bigger or a lot smaller than the rest of the data Outliers are defined a...
Linear Transformations of Data Why are linear transformations of data used? Sometimes data might be very large or very small You can apply a?linear transformation?to the data to make the values mor...
Ungrouped Data How are frequency tables used for ungrouped data? Frequency tables can be used for ungrouped data when you have lots of the same values within a data set They can be used to collect ...
Mean, Mode, Median What are the mean, mode and median? Mean, median and mode are?measures of central tendency They describe where the centre of the data is They are all types of?averages In statist...
Edexcel IGCSE Physics 復習筆記 3.2.1 Light & Sound Waves Light Visible light is a part of the electromagnetic spectrum which means it is a?transverse wave This means the direction the li...
Edexcel IGCSE Physics 復習筆記 3.1.7 Dangers of EM Waves Dangers of EM Waves As the frequency of electromagnetic (EM) waves increases, so does the energy Beyond the visible part of the spect...