Mathematics, 07.06.2021 19:20 natalyarenassalgado

On a standardized exam, the scores are normally distributed with a mean of 190 and a standard deviation of 20. Find the z-score of a person who scored 155 on the exam.

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On a standardized exam, the scores are normally distributed with a mean of 190 and a standard deviation of 20. Find the z-score of a person who scored 155 on the exam. Help please...

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Another question on Mathematics

On a standardized exam, the scores are normally distributed with a mean of 190 and a standard deviation of 20. Find the z-score of a person who scored 155 on the exam.

Help please...