Oct 24, 2024 · To find the Z score of a sample, you'll need to find the mean, variance and standard deviation of the sample. To calculate the z-score, you will find the difference between a value in the …

Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.

To calculate the z-score, use the formula z= (x-μ)/σ, where x is the raw score, μ is the mean and σ is the standard deviation. In words, subtract the mean from the raw score and then divide by the standard …

Z-score definition. How to calculate it (includes step by step video). Hundreds of statistics help articles, videos.

Nov 4, 2025 · With the first method above, enter one or more data points separated by commas or spaces and the calculator will calculate the z-score for each data point provided from the same …

Jul 12, 2025 · The Z-score indicates how many standard deviations an element is from the mean. Z-Score Formula To calculate the z- score for any given data we need the value of the element along …

The formula for finding z-scores is the following: X represents the data point of interest. Mu and sigma represent the mean and standard deviation for the population from which you drew your sample. …

Z-score, otherwise known as the standard score, is the number of standard deviations by which a data point is above the mean. You can use our z-score calculator to determine this value for you. Read on …

Apr 21, 2025 · When you’re analyzing test scores, investment returns, or scientific data, a Z-score tells you how many standard deviations a value is from the mean. This article breaks it down step by …

Oct 6, 2023 · A z-score is a statistical measure that describes the position of a raw score in terms of its distance from the mean, measured in standard deviation units. A positive z-score indicates that the …