Combine mean calculated by different given mean is ________?
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A. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
C. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
D. ?n1x/x1
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.