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Mathematics, 10.02.2021 07:20, kadence428
NEED ASAP
On a unit test in a statistics class, the teacher determines that the mean test grade was 77.5 with a standard
deviation of 5.2. One student's test grade was 91. What is the z-score for the student's test?
-5.20
-2.60
2.60
5.20
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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On a unit test in a statistics class, the teacher determines that the mean test grade was...
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