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4. Consider the result of a ctional Stat 100 nal exam taken by 120 students, as given in the following relative frequency distribution: Less than

4. Consider the result of a ctional Stat 100 nal exam taken by 120 students, as given in the following relative frequency distribution: Less than 50 50-59 60-69 70-79 80-89 90-100 Cumulative Frequency How many students received at least a 70 on this exam? a) 54 b) 45 c) 25 d) 30 e) 66

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