If - fixi - 75 and - fi - 15- then find the mean x

Given ∑ f_ix_i = 75 and ∑ f_i = 15 Mean (x) = ∑ f_ix_i∑ f_i = 7515 = 5 ...

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Direct Method of Finding Mean

If ∑ fixi =...

Question

If $\sum f_{i} x_{i} = 75$ and $\sum f_{i} = 15$ , then find the mean $¯ ¯ ¯ x$

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