Question
The sum of 15 observations of a data is $(434+\mathrm{x})$. If the mean of the data is $\mathrm{x}$, then find $\mathrm{x}$.(1) 25(2) 27(3) 31(4) 33
Step 1
This can be written as: \[ \sum_{i=1}^{15} x_i = 434 + x \] Show more…
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