Question: A set of data items is normally distributed with a mean of 20 and a standard deviation of 6. Convert 20 to a z-score. z20=

A set of data items is normally distributed with a mean of 20 and a standard deviation of 6. Convert 20 to a z-score. z20= ___ (Do not round until the final answer. Then round to the nearest hundredth as needed.)

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