Can you explain what the Z-Score method is?
Sure! The Z-Score method is a statistical technique used to determine how many standard deviations an element is from the mean.
How is the Z-Score calculated?
The Z-Score is calculated using the formula: Z = (X - μ) / σ, where X is the value, μ is the mean, and σ is the standard deviation.
What does a Z-Score tell us?
A Z-Score indicates how unusual or typical a data point is within a distribution. A Z-Score of 0 means the value is exactly at the mean.
Can you give me an example of using the Z-Score?
Of course! If a student scored 85 on a test, the class average was 75, and the standard deviation was 5, the Z-Score would be Z = (85 - 75) / 5 = 2. This means the student scored 2 standard deviations above the mean.
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