let x bar be the mean of x1 ,X2 ,....cn and y bar be the mean of y1, y2, ....yn if z bar is the mean of x1 , X2...cn ,y1, y2,...yn

Question

let x bar be the mean of x1 ,X2 ,....cn and y bar be the mean of y1, y2, ....yn if z bar is the mean of x1 , X2...cn ,y1, y2,...yn than z bar=?​

Eloise · Answer

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let x bar be the mean of x1 ,X2 ,….cn and y bar be the mean of y1, y2, ….yn if z bar is the mean of x1 , X2…cn ,y1, y2,…yn