Two Students Recently Took Algebra Class Tests

Multiple Choice

Two students recently took algebra class tests.The students are at different schools but wanted to compare their performance.The first student scored 80 on the test.Her class average was 90 with a standard deviation of 10.The second student scored 70.Her class average was 50 with a standard deviation of 10.Which student did better?

A) first student because she had a higher score
B) second student because she had an average score
C) first student because she performed better relative to her class
D) second student because she performed better relative to her class