Question

d_i is the deviation of x_i from assumed mean a. If mean = `x+(sumf_id_i)/(sumf_i),` then x is ______.

Options

• class size

• number of observations

• assumed mean

• none of these

Answer 1

d_i is the deviation of x_i from assumed mean a. If mean = `x+(sumf_id_i)/(sumf_i),` then x is assumed mean.

Explanation:-

`because "Mean"="assumed mean" +(sumf_id_i)/(sumf_i)`

∴ x = assumed mean