Scores on a quiz are normally distributed with a mean of 9.6 and a standard deviation of 3. Compute the z score for a quiz score of 10. Round your final answer to three decimal places.
Solution :
Given that mean μ = 9.6 , standard deviation σ = 3 and a quiz score x = 10
=> Z-score = (x - μ)/σ
= (10 - 9.6)/3
= 0.133
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