Need to work out how many people over the age of 44 were chosen for the survey
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Mathematics, 24.02.2021 14:30 dward5823
Need to work out how many people over the age of 44 were chosen for the survey
Answers: 2
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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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