The value of Σfx is 300, A= 35, number of observations are 15 and width of clas

Question

The value of Σfx is 300, A= 35, number of observations are 15 and width of class interval is 5 then arithmetic mean is

Options:

A . 135

B . 145

C . 150

D . 235

Answer: Option A
Answer: (a).135

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