**Core concept 5.2**

**Statistical analysis**

5.2.1.1 Understand that the different measures of central tendency offer a summary of a set of data

5.2.1.2 Understand how certain statistical measures may change as a result in changes of data

5.2.1.3 Understand range as a measure of spread, including a consideration of outliers

5.2.1.4 Understand that the different statistical representations offer different insights into a set of data

**5.2.1.5* Use the different measures of central tendency and spread to compare two sets of data**

5.2.1.6 Use the different statistical representations to compare two sets of data

5.2.1.7 Recognise relationships between bivariate data represented on a scatter graph

**5.2.1.5 Use the different measures of central tendency and spread to compare two sets of data**

**5.2.1.5 Use the different measures of central tendency and spread to compare two sets of data**

●Accurately compare two data sets using one or more summary statistic.

●Understand that data sets can have the same measures of central tendency but a different measure of spread.

●Understand range is a measure of spread and not a measure of central tendency.

●Solve familiar and unfamiliar problems, including real-life applications.

●Solve problems where there is more than one answer and where there are elements of experimentation, investigation, checking, reasoning, proof, etc.

5.2.2.1 Given a statistical problem, choose what data needs to be analysed to explore that problem

**5.2.2.2* Given a statistical problem, choose appropriate statistical measures to explore that problem**

5.2.2.3 Given a statistical problem, choose appropriate representations to explore that problem

5.2.2.4 Given a statistical problem, choose appropriate measures and representations to effectively summarise and communicate conclusions

**5.2.2.2 Given a statistical problem, choose appropriate statistical measures to explore that problem**

**5.2.2.2 Given a statistical problem, choose appropriate statistical measures to explore that problem**

●Explain why a certain average is the best choice of measure of central tendency.

●Explain why certain statistical measures give a better measure of dispersion.