AnswER
4,100 STUDENTS
Step-by-step explanation:
EVERY 2 YEARS, THE STUDENT POPULATION INCREASES BY 250
NOW ADD 250 TO 3350= 3600(BY 2009)
ADD 250 TO 3600=3850(BY 2011)
FINALLY ADD ANOTHER 250 TO 3850=4100(BY 2013)
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