Statistics & Probability
HL non-linear regression 4.13
'Predict the future using your functions knowledge ' Can you match a suitable function (using your knowledge of the key points and trends of different 'families' of functions HL(SL) Functions) to a context/real-world...
Statistics & Probability
SL Chi Squared Tests
The chi squared independence tests is a widely used technique for looking for a relationship between variables that are categorical. We can use a scatter graph to look for a relationship between GDP and...
Statistics & Probability
SL Linear correlation
The search for meaningful relationships between two variables. Here we take the leap from 1 variable to 2 variable data analysis. In any given survey we collect data for a number of 'items' surveyed....
Statistics & Probability
SL Normal Distribution
The normal distribution is a fascinating, naturally occurring phenomenon that has very relevant applications to understanding the world around us. When a data set is normally distributed it has some key...
Statistics & Probability
SL Presenting Data
This topic is all about these two related tools for helping us look at how a data set is spread out. Learn about filling in cumulative frequency tables, plotting the corresponding curves and using the...
Statistics & Probability
SL Probability of events
Possibly the most relevant, useful and appropriate part of any mathematics course in schools! Everyone has an intuitive understanding of probability at its most simple level, but it is amazing how short...
Statistics & Probability
SL Scheme - Statistics
The new Mathematics: Applications and Interpretation syllabus is out and published on the IB website. Log in to your MyIB account and head to this link . It is a new course with a new name and renewed...
Statistics & Probability
SL Spearman's Rank
For data that is non-linear, contains extreme values/outliers or in which we want to compare the ranks of one thing e.g. people's favourite chocolate in different countries, rather than pure numerical...
Statistics & Probability
SL T-test
In a mathematics test, you might find the average female scores are higher than the boys or vice-versa. It's costly, and time consuming, to take samples. Is there a way we could decide, from just one...
Functions
HL Revision Pack Functions and Modelling
The questions are available directly in the webpage, or as a printable PDF.The solutions are only available on this page. The page is set so that teachers using Student Access (you really should, it's...