The z SCORE calculator computes the number of standard deviations that an observation (y) is from the mean of a set of observations (X). This is commonly known as the z SCORE.
INSTRUCTIONS: Enter the following:
z SCORE: The calculator returns the z SCORE value. This z SCORE calculator is also a prominent feature with other statistical functions in the(Stat Calc).
The formula for the z SCORE is as follows:
`z_y = (y - μ_X)/s` where:
- y is the single observation
- μ is the mean
- s is the sample or population standard deviation.