9.The enrollment in a School during six consecutive years was as follows: 1555,1670,1750,2013,2540,2820 Find the range of enrollment of the school for this period.
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Step-by-step explanation:
The mean enrolment of the school for this period = (Sum of enrolments)/(Number of years) = (1555 + 1670 + 1750 + 2013 + 2540 + 2820)/6 = 12348/6 = 2058.
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