BUSINESS ADMINISTRATION
BUSINESS ANALYTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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standard deviation
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median
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mean
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mode
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Detailed explanation-1: -The statement is false. A z-score of 0 is a standardized value that is equal to the mean.
Detailed explanation-2: -Z-score is a statistical measurement that describes a value’s relationship to the mean of a group of values. Z-score is measured in terms of standard deviations from the mean. If a Z-score is 0, it indicates that the data point’s score is identical to the mean score.
Detailed explanation-3: -If you know the mean and standard deviation, you can find the z-score using the formula z = (x-) / where x is your data point, is the mean, and is the standard deviation.
Detailed explanation-4: -Z-score indicates how much a given value differs from the standard deviation. The Z-score, or standard score, is the number of standard deviations a given data point lies above or below mean. Standard deviation is essentially a reflection of the amount of variability within a given data set.
Detailed explanation-5: -The formula for calculating a z-score is is z = (x-)/, where x is the raw score, is the population mean, and is the population standard deviation.