eto911
20.09.2020 •
Mathematics
Question 24
4 pts
Test scores for a history class had a mean of 79 with a standard deviation of 4.5. Test
scores for a physics class had a mean of 69 with a standard deviation of 3.7. Suppose a
student gets a 65 on the history test and a 84 on the physics test. Calculate the z-score for
each test. On which test did the student perform better?
History
Physics
Solved
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Ответ:
Answer
22
Step-by-step explanation:
82-2=80-60=20+2=22