If the scores in a probability and statistics test are normally distributed with a mean of 25 and standard deviation of 3.5. What is the z-score for a score of 30?
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If the scores in a probability and statistics test are normally distributed with a mean of 25 and standard deviation of 3.5. What is the z-score for a score of 30?
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Answer:
1.4285
Step-by-step explanation:
You need to use the formula for z which is included in the picture ^^