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Test scores for a Statistics class have a mean of 78 with a standard deviation of 6. Suppose a student gets an 81 on that test. What is the z-score for that grade?

Test scores for a Statistics class have a mean of 78 with a standard deviation of 6. Suppose a student gets an 81 on that test. What is the z-score for that grade?
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Test scores for a Statistics class have a mean of 78 with a standard deviation of 6. Suppose a student gets an 81 on that test. What is the z-score for that grade?

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User Shahid Tariq
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7.9k points

1 Answer

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Answer:

0.3209

in case you dont know A z-score tells you if the distribution it comes from is normal.

Explanation:

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User Amir Kadyrov
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8.4k points
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