Given the following frequency distribution, calculate the mean by direct method?

Given the following frequency distribution, calculate the mean by direct method?

Expert Solution

Solution:

Weighted Arithmetic Mean of any frequency distribution by direct method is given by the formula:

x̅=∑xifi / ∑f_i

Calculate ∑fi, ∑xifi and proceed as shown below to get x̅:

Thus, x̅ = 30.44

So, the weighted Arithmetic Mean of the given frequency distribution by direct method is 30.44

Weighted Arithmetic Mean of the given frequency distribution by direct method is 30.44

Shams answered 2 years ago

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