Hi All , I want to replace Missing values with average. As an example my data set contains variable salary Gender and age_group, i want to replace missing values of Salary with avg for That Gender(which is in Observation)and falls in that particular Age Group. I want to replace the Missing Value @ Id 8 with Avg Salary of female in Medium Age Group. Id Age_group Gender Salary 1 Young M 44701 2 Medium F 41755 3 Old M 37127 4 Young F 85233 5 Medium M 67517 6 Old F 99904 7 Young M 26938 8 Medium F 9 Old M 37583 10 Young F 78853 11 Medium M 12 Old F 73138 13 Young M 29987 14 Medium F 33115 15 Old M 50883 16 Young F 17 Medium M 48555 18 Old F 62939 19 Young M 52488 20 Medium F 65333 21 Old M 87914
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