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for calculating weighted mean of 64 patients with pulmonary tuberculosis by age group in Baghdad, find the arithmetic mean of the age of these patients, where Xj fj = 1660

for calculating weighted mean of 64 patients with pulmonary tuberculosis by age group in Baghdad find the arithmetic mean of the age of these patients where Xj class=

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for calculating weighted mean of 64 patients with pulmonary tuberculosisfor calculating weighted mean of 64 patients with pulmonary tuberculosis by age group in Baghdad, find the arithmetic mean of the age of these patients, where Xj fj = 1660 by age group in Baghdad, find the arithmetic mean of the age of these patients, where Xj fj = 1660

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