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Scores on a dental anxiety scale range from 0 (no anxiety) to 20 (extreme anxiety). The scores are normally distributed with a mean of 11 and a standard deviation of 4. Find the z-score for the following
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Scores on a dental anxiety scale range from 0 (no anxiety) to 20 (extreme anxiety). The scores are normally distributed with a mean of 11 and a standard deviation of 4. Find the z-score for the following raw score: 12

User Mehmet Nuri
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z-score = (raw score - mean)/standard deviation = (12 - 11)/4 = 1/4 = 0.25
User Navela
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