Year 9 Statistics

Different Types of Data and How We Can Collect It

Data in Different Forms Raw: Ungrouped and Grouped Frequency Tables

Averages and Range and Why We Use Them

Finding Averages When the Data is in a Frequency Table

Finding Averages When Data is in a Grouped Frequency Table

Stem and Leaf Diagrams

Histograms and Frequency Polygons

Cumulative Frequency Graphs

The Interquartile Range

Box Plots

Scatter Diagrams and Correlation

Interpreting Graphs and Comparing Datasets

Misleading Graphs

Course Review and Roundup