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 ...
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...
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...
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...
Exponential Relationships How do I use logarithms to linearise exponential relationships? Graphs of?exponential functions?appear as straight lines on?semi-log graphs How can I use linearised data t...
Logarithmic Scales What are logarithmic scales? Logarithmic scales?are scales where intervals?increase exponentially A normal scale might go 1, 2, 3, 4, ... A logarithmic scale might go 1, 10, 100,...
Non-linear Regression What is non-linear regression? You have already seen that?linear regression?is when you can use a straight line to fit bivariate data Non-linear regression?is when you can use...
Linear Regression Exam Tip Once you calculate the values of?a?and?b?store then in your GDC This means you can use the full display values rather than the rounded values when using the linear regres...
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...
