Answer to Question #184614 in Economics for Champs

Question

Question Three 

Given that the arithmetic mean of 500 items is 1000. However, at the time of calculations two items 1800 and 900 were wrongly taken as 1000 and 100. Please find the correct value of Arithmetic mean.

Question Four 

We heard that the mean marks of statistics of 100 students of a class of economics majors were 72. The mean marks of Males were 75 while their number was 70. Work out the mean of Females in the class.

Answer 1

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