IB DP Maths: AI SL复习笔记4.2.3 Linear Regression
Linear Regression What is linear regression? If strong linear correlation exists on a scatter diagram then the data can be modelled by a linear model Drawing lines of best fit by eye is not the bes...
IB DP Maths: AI SL复习笔记4.2.2 Correlation Coefficients
PMCC What is Pearson’s product-moment correlation coefficient? Pearson’s product-moment correlation coefficient (PMCC) is a way of giving a numerical value to a linear relationship of bivariate dat...
IB DP Maths: AI SL复习笔记4.2.1 Bivariate data
Scatter Diagrams What does bivariate data mean? Bivariate data is data which is collected on two variables and looks at how one of the factors affects the other Each data value from one variable wi...
IB DP Maths: AI SL复习笔记4.1.7 Interpreting Data
Interpreting Data How do I interpret statistical measures? The mode is useful for qualitative data It is not as useful for quantitative data as there is not always a unique mode The mean includes a...
IB DP Maths: AI SL复习笔记4.1.6 Univariate Data
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,...
IB DP Maths: AI SL复习笔记4.1.5 Outliers
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...
IB DP Maths: AI SL复习笔记4.1.4 Linear Transformations of Data
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...
IB DP Maths: AI SL复习笔记4.1.3 Frequency Tables
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 ...
IB DP Maths: AI SL复习笔记4.1.2 Statistical Measures
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...
2022-2023达特茅斯学院补充文书题目公布
进入暑期以来，我们都有密切关注美国大学2023Fall入学资讯更新，并将其及时整理成专辑内容，供申请生取用。最近，2022-2023达特茅斯学院补充文书题目公布。八大藤校之一的私立名校，率先公开了2022-2023年补充文...
Edexcel IGCSE Physics 复习笔记 3.2.2 Reflection & Refraction
Edexcel IGCSE Physics 复习笔记 3.2.2 Reflection & Refraction Reflection & Refraction All waves, whether transverse or longitudinal, can be reflected and refracted Reflection occurs w...
Edexcel IGCSE Physics 复习笔记 3.2.1 Light & Sound Waves
Edexcel IGCSE Physics 复习笔记 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...
