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Consider the result of a Statistics exam taken by 120 students, as given in the following relative frequency distribution: Grade <50 50-59 60-69 70-79 80-89

Consider the result of a Statistics exam taken by 120 students, as given in the following relative frequency distribution:

Grade	<50	50-59	60-69	70-79	80-89	90-100
Frequency	15%	10%	30%	25%	15%	5%

How many students scored a grade of at least 70 on this exam?

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