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Mathematics
Problem
From the grouped data below, determine the population variance (correct to the nearest whole number). Age (years): 0–5 | 5–15 | 15–25 | 25–45 Number of persons: 5 | 8 | 10 | 7 a)
122
122
122
b)
130
130
130
c)
126
126
126
d)
123
123
123
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