lee looked at the results of an exam he had just given to his grade 2 math class. he saw that louise had a score of 95%. he also saw that the standard deviation for the test was 0. if arif was also in his grade 2 math class, what mark did arif get on the exam?

If SD = 0, there is no variability. Everyone got 95%.

To determine what mark Arif got on the exam, we need more information than what is given in the question. Since the standard deviation for the test is stated as 0, it means that all the students in the class scored the same mark.

However, the question does not explicitly mention what that mark is. Therefore, we cannot determine Arif's score on the exam without additional information about the class's marks distribution or Arif's individual performance.