Asked by Kaitlyn Ramsey on May 02, 2024
Verified
If you want to calculate a z score for a test where your raw score was 24,what other information must you know?
A) shape of the distribution
B) mean,median,and mode
C) mean and standard deviation
D) standard deviation only
Z Score
A statistical measurement that describes a value's relationship to the mean of a group of values, measured in terms of standard deviations from the mean.
Mean
The mean is a measure of central tendency that calculates the average value of a set of numbers by dividing the sum of those numbers by their quantity.
- Gain insight into the idea and employment of z scores for statistical analysis purposes.
- Determine actual scores by employing z scores, standard deviations, and mean figures.
Verified Answer
EO
Eddie OlivaMay 08, 2024
Final Answer :
C
Explanation :
To calculate a z score, you need to know the mean and standard deviation of the distribution. Therefore, the correct option is C. Knowing the shape of the distribution is useful to provide additional information about the data, but it is not required to calculate a z score. The median and mode are not used in z-score calculations. Only the standard deviation is not enough to calculate the z-score without knowing the mean.
Learning Objectives
- Gain insight into the idea and employment of z scores for statistical analysis purposes.
- Determine actual scores by employing z scores, standard deviations, and mean figures.