A z-score (also called a standard score) gives you an idea of how far from the mean a data point is. More technically, it’s a measure of how many standard deviations below or above the population …

What is a Z-Score? The z-score describes how many standard deviations a raw score is above the mean. Negative z-scores indicate a position below the mean. For example, a z-score of 2 means two …

Z-scores describe how data values compare to the mean by indicating how many standard deviations a value falls above or below the mean.

Jul 23, 2025 · In it's most basic form, the z-score allows you determine how far (measured in standard deviations) the returns for the stock you're evaluating are from the mean of a sample of stocks.

Standard scores are most commonly called z-scores; the two terms may be used interchangeably, as they are in this article. Other equivalent terms in use include z-value, z-statistic, normal score, …

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 …

Jul 26, 2022 · What does a z score mean? A z-score means the number of standard deviations a value is from the mean. It tells a lot about a raw score in aspects of its standard deviation unit of distance …

Feb 12, 2025 · A Z-score, also known as a standard score, measures how many standard deviations a data point is from the mean of a dataset. It is used in statistics to standardize data, compare different …

There are a few different formulas for calculating a Z-score. Given that the population mean and standard deviation are known, a Z-score can be calculated using the following formula. where μ is …

Jan 26, 2025 · What Is a Z-Score, Really? A Z-score tells you how many standard deviations away from the mean a specific value lies. Think of it as giving every piece of data a “relative address” in your …