Question: According to the information given in Table: Number Interval Age (x). of centres years employees (x) (f), pers. 20-25 10 22.5 25-30 70 27.5
According to the information given in Table: Number Interval Age (x). of centres years employees (x) (f), pers. 20-25 10 22.5 25-30 70 27.5 30-35 110 32.5 35-40 50 37.5 40-45 10 42.5 Total 250 Calculate the median of the age (use 1" separated decimal unit, e.g. 5.5) Answer:
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