You can put this solution on YOUR website! Here's how to calculate the z-score:
* **Understanding Z-score:** A z-score tells you how many standard deviations a data point is from the mean of a distribution.
* **Formula:** z = (x - μ) / σ
* Where:
* x = the data point (4 in this case)
* μ = the mean of the distribution (12)
* σ = the standard deviation of the distribution (5)
* **Calculation:**
* z = (4 - 12) / 5
* z = -8 / 5
* z = -1.6
* **Result:** The z-score is -1.60.