All Algebra II Resources
Example Questions
Example Question #11 : Z Scores
Determine the z-score of a test result is 45, the mean is 60, and the standard deviation is 8.
Write the formula for z-scores. Z-scores determine the number of standard deviations below or above the mean.
Substitute the values into the formula to determine the z-score.
The z-score is .
Example Question #501 : Algebra Ii
Suppose Billy scored a 54 on his exam. The mean of the exam grades is 66 and the standard deviation is 3. What is the z-score?
Write the formula for z-scores. Z scores determine how many standard deviations a score is above or below the mean.
Substitute the known values in order to determine the z-score.
The answer is:
Example Question #431 : Basic Statistics
Sarah scored an 8.5 out of ten on her gymnastics floor routine. If the mean of the scores is 9.2 and the standard deviation is 1.3, what is her z-score?
Write the formula for z-scores. Z-scores are indicators of how many standard deviations above or below the mean.
Substitute the known values.
The answer is:
Example Question #11 : Z Scores
You just took your ACT. The mean score was a with a standard deviation of
. If you scored a
, what is your z-score?
Use the formula for z-score:
Where is your score,
is the mean, and
is the standard deviation.
Certified Tutor
Certified Tutor
All Algebra II Resources
