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Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
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Mathematics, 21.06.2019 22:30
Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal
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Mathematics, 21.06.2019 23:50
Find the interior angle of a regular polygon which has 6 sides
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