Cumulative formed by or resulting from accumulation or the addition of successive parts or elements. To determine probabilities, we need to determine areas under the standard normal curve. The below Cumulative Area Calculator helps you to calculate Cumulative probability p from z-score. Just enter Z-Score (z) in the input to get the result. Therefore, the standard normal distribution cumulative probability which is calculated from the z-score is an approximation.
Z-score calculation is done via two types. Calculating Cumulative Probability p from z-score and calculating z-score from p. But here, Cumulative Area Calculator calculates cumulative area probability p from z-score. The standard normal distribution is used frequently in analytics.