Same Score, Different Classes

Difficulty: Easy · Topics: Probability, Statistics, z-Scores

Five students in five different classes took the same exam. The table shows their scores and z-scores.

Student Score z-score --- --- --- Sedef 50 1 Belma 50 2 Suna 50 0 Beril 50 -1 Semra 50 -2

Which of the following is false ?