The scatter diagram shows information about 12 girls - Edexcel - GCSE Maths - Question 2 - 2018 - Paper 3

The point representing Kristina, who is 11 years old and takes 12 seconds to run 100 metres, would be considered an outlier because it does not fit in with the trend of the other points. Most points show that younger girls tend to have better times (lower seconds) compared to older girls, and Kristina's time is much longer than would be expected for her age.

Debbie's statement that the scatter diagram shows she should take less than 12 seconds to run 100 metres is incorrect. Based on the information from the scatter diagram, her data point falls outside the range of what is represented. Most points indicate that girls of her age tend to take longer than 12 seconds, so it is unlikely for her to achieve that time.