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...
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...
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...
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...
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...
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,...
