AP Statistics Sample Question
Measures of relative standing - z-score, quartiles, percentiles
Alex scored 90 on a science test which had a mean of 80 and a standard deviation of 4.
Blake scored 78 on a history test which had a mean of 70 and a standard deviation of 3. Relative to their respective mean and standard deviation, who got the better grade?
Blake scored 78 on a history test which had a mean of 70 and a standard deviation of 3. Relative to their respective mean and standard deviation, who got the better grade?
- Both performed equally
- Alex
- Blake
Answer it in the practice quiz below to see how you did.

