Explain the concept, properties and uses of z scores.

Z-scores can be positive or negative. The sign tells you whether the observation is above or below the mean. For example, a z-score of +2 indicates that the data point falls two standard deviations above the mean, while a -2 signifies it is two standard deviations below the mean. A z-score of zero equals the mean. Statisticians also refer to z-scores as standard scores, and I’ll use those terms interchangeably.

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 _____ _______ ____ _________ _____ _______ ______ ______ ___ ____ ________ _____.
______ _________ __________ __________ _____ _______ ____ ___.
_______ ___ __________ ____ ____ _________.
________ ___ ___ ____ ________ ________.
_____ ____ _________ _______ ____ _____ _____.
____ _______ ______ ___ ______ ____.
______ ______ _______ ________ ____.
_______ ____ _________ _____ __________ _____ _______.
________ ________ ______ _______ _________ ________.
_____ _________ ________ __________ __________ ___ _______.
_______ ________ __________ _____ ________ ________ ____ ____.
___ ____ ____ ________ __________ ___.
_______ __________ _____ ______ _______ __________ _________.
______ ______ ________ ________ _____ _____.
_____ ______ ___ _______ ______ ____ _______ ___ ____ ______ ____ __________.
____ ____ _________ ___ ____ _____ _________ __________ _____.
______ _______ ___ ____ ______.
_________ _____ _________ __________ __________ ___ ____.
___ _____ ________ ___ ________ ______ ____ _____ _____.
________ ____ __________ ____ ______.
__________ __________ ____ ___ _________ _________ __________ _______ ___ _______ ____.
_____ _________ ________ _______ ______ __________ _______ _________ ____ __________ ___.
____ ________ ___ ______ ________.
_____ ________ ________ _______ ______ ___ _______ ______ ________ _______ _________ _________.
_________ ______ ___ ________ ______ ___.
_________ _________ ___ __________ ______ __________ ___ ______ _____ ___ __________.
___ _________ ____ ____ ____.
____ ____ _____ __________ ______ ______ _________ _____ ____ ________ _____ _____.
_____ ______ _______ ____ _____ ___ _______.
____ _____ _______ __________ ______ _________ ____ ________ _______ ____.
__________ ____ ______ ______ _________ ___.
__________ ___ _______ _______ ________ ____ __________.
____ ________ ____ ___ _______ __________ ___ __________ _______ ____.
______ _____ ______ _________ ___.
_________ _____ _________ _____ ______ ______.
_______ _________ ________ ____ _____ _______ ___.
___.
Get Full Answer on WhatsApp