IB DP Maths: AI SL復習筆記4.4.2 Expected Values
Expected Values E(X) What does E(X) mean and how do I calculate E(X)? E(X)?means the?expected value?or the?mean?of a?random variable X The expected value does not need to be an obtainable value of?...
IB DP Maths: AI SL復習筆記4.4.1 Discrete Probability Distributions
Discrete Probability Distributions What is a discrete random variable?? A?random variable?is a variable whose value depends on the outcome of a?random event The value of the random variable is not ...
IB DP Maths: AI SL復習筆記4.3.3 Sample Space Diagrams
Venn Diagrams What is a Venn diagram? A Venn diagram is a way to illustrate?events?from an?experiment?and are particularly useful when there is an overlap between possible?outcomes A Venn diagram c...
IB DP Maths: AI SL復習筆記4.3.2 Conditional Probability
Conditional Probability What is conditional probability? Conditional?probability?is where the probability of an?event?happening can vary depending on the outcome of a prior event The event?A?happen...
IB DP Maths: AI SL復習筆記4.3.1 Probability & Types of Events
Probability Basics What key words and terminology are used with probability? An?experiment?is a repeatable activity that has a result that can be observed or recorded Trials?are what we call the re...
IB DP Maths: AI SL復習筆記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復習筆記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復習筆記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復習筆記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...
