Hoe to Calculate Low and High Z Scores
Z-scores are essential in statistics, helping to understand how many standard deviations an element is from the mean. Calculating low and high Z scores is crucial for data analysis and interpretation.
- Enter the mean, standard deviation, and score.
- Click ‘Calculate’.
- View the results and chart.
The formula for Z-score is: Z = (X – μ) / σ, where X is the raw score, μ is the population mean, and σ is the standard deviation.
| Score | Z-score |
|---|---|
| 50 | 1.28 |
| 100 | 2.58 |
- Z-scores help compare data with different means and standard deviations.
- Z-scores range from -∞ to +∞, with 0 being the mean.
- Z-scores can be negative or positive, indicating below or above the mean.
What are Z-scores?
Z-scores are a measure of how many standard deviations an element is from the mean.