Respuesta :
Dirk will have the highest mean score but Valerie will have the highest median score.
How to calculate the mean
The mean score of Dirk will be:
= (771 + 707 + 755)/3
= 744
This is the biggest when compared to others.
Also, it can be deduced that Valerie will have the highest median score. This is because the median of 774 is the highest.
Learn more about mean on:
https://brainly.com/question/20118982