A Spanish class with 10 students took a 20-point quiz. The scores are in the list below.
Scores: 12, 20, 13, 15, 19, 15, 16, 17, 16, 17
The teacher gave the students their scores as a z-score so they could see how they performed compared to the rest of the class. Ibrahim had a z-score of 0.
What was his quiz score?
