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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%

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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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