IB DP Maths: AA HL复习笔记4.4.2 Mean & Variance
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 ...
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IB DP Maths: AA HL复习笔记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: AA HL复习笔记4.3.4 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: AA HL复习笔记4.3.3 Bayes' Theorem
Bayes' Theorem What is Bayes’ Theorem How do I calculate conditional probabilities using Bayes’ Theorem? Start by drawing a tree diagram Label B1 & B2 (& B3 if necessary) on the first set o...
IB DP Maths: AA HL复习笔记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: AA HL复习笔记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: AA HL复习笔记4.2.2 Correlation & Regression
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: AA HL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: AA HL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...
