I have used this activity from year 7 to year 9. I made this as a group activity for a carousel. There is scope for extension with the pie charts (e.g. create your own second statement for each pie chart). The other two activities vary in difficulty. The pie charts are a matching activity - pie chart to statement. The bar charts are questions based on bar charts (require more than simple reading off of values), the frequency table is matching the cards to each table - leads in to calculating the mean from a table).