Mathematics, 04.10.2021 06:50 rn2be1980
Suppose the marks on last year's PSYC 2260 exam were normally distributed with had a mean of 78% and a variance of 81%. If it takes 83% on the exam to earn an A in the class, what portion of students earned an A?
Question 25 options:
It is impossible to earn an A
71.23%
33%
28.77%
67%
Answers: 3
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Suppose the marks on last year's PSYC 2260 exam were normally distributed with had a mean of 78% and...
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