A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.
A)17
B)16
C)15
D)20

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The Answer of A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.
A)17
B)16
C)15
D)20

A Distribution Consists of Three Components with Total Frequencies of 200