Reviewed by: David Chen, CFA
David Chen is a Certified Financial Analyst with over 10 years of experience in finance and statistics, providing expert advice on data analysis and statistical modeling.
David Chen is a Certified Financial Analyst with over 10 years of experience in finance and statistics, providing expert advice on data analysis and statistical modeling.
How to Calculate Z-Score in TI-84 Calculator Emulator Online
Calculation steps will be shown here once you calculate.
Z-Score Formula
Z-Score = (X – µ) / σ
Formula Source: Investopedia
- X: The data point.
- µ: The mean of the dataset.
- σ: The standard deviation of the dataset.
Related Calculators
- Standard Deviation Calculator
- Normal Distribution Calculator
- Variance Calculator
- Probability Calculator
What is a Z-Score?
A Z-score indicates how many standard deviations a data point (X) is from the mean (µ) of a dataset. It is used in statistics to understand the relative position of a data point in relation to the distribution of values.
How to Calculate Z-Score (Example)
- Step 1: Enter the mean, the data point, and the standard deviation.
- Step 2: Click “Calculate” to get the Z-score.
- Step 3: Review the calculation steps and the final result.
Frequently Asked Questions (FAQ)
What does a Z-score of 0 mean? A Z-score of 0 means the data point is exactly at the mean of the dataset.
What is a positive Z-score? A positive Z-score indicates that the data point is above the mean of the dataset.
How do you interpret Z-scores? Z-scores allow you to determine how extreme or typical a data point is in relation to the distribution.