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Mathematics, 10.06.2021 14:00 minileiva211

The class average on a math test wa s an 82 with a standard deviation o f 5. If the  data is normally distributed, which  statements are true?

1. A student scoring a 74  would have a z -score of -1.6.
2. About 68% of the students  scored below an 87.
3. A z-score of 2.6 would be a test 
score of 95.
4. About 16% of the class  scored a 77 or below.
45. About 25% of the class  scored above a 92.

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