If a student scored 82 points on a test where the mean score was $78.2$ and the standard deviation was 6.7. The student's $z$ score is_____.
A) 0.57
B) 12.24
C) 11.67
D) 0.08

Question

Quizplus · Accepted Answer

The $z$ score is calculated by subtracting the mean from the individual score and then dividing by the standard deviation: $z = \frac{82 - 78.2}{6.7} = 0.57$.

If a Student Scored 82 Points on a Test Where 78.278.278.2

If a Student Scored 82 Points on a Test Where $78.2$