Ten pupils in a school study French and German at GCSE. Their marks in recent tests are recorded in the table below:
|Mark in French|
|Mark in German|
Draw a scatter diagram to represent these marks. As Pete was absent on the day of the German test you do not have enough information to mark his score.
Looking at this scatter diagram, there is strong positive correlation between the marks in French and the marks in German - so you can draw a line of best fit to show that trend.
Pete scored in French, so using the line of best fit, you can estimate that his mark in German would have been approximately .