In class A, Jamir got 85 for his first test. Jamir's class mean was 75 and the standard deviation was 5. In class B, Laurabelle got 80 in her first test. Laurabelle's class mean was 50 and the...

In class A, Jamir got 85 for his first test. Jamir's class mean was 75 and the standard deviation was 5.
In class B, Laurabelle got 80 in her first test. Laurabelle's class mean was 50 and the standard deviation was 10.
In a fair comparison of the two students in two different classes, who did better in his or her test.  (Compare Jamir and Laurabelle's standing in their classes.
Note Z-score gives that information.)

1. Jamir


2. Laurabelle


3. Both did the same


4. none of the above