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If mean of \(n\) item is \(\overset{¯}{x}\). If each \({r}^{\mathrm{th}}\) item is increased by \(2r\). Then new mean wi…

Q1

If mean of \(n\) item is \(\overset{¯}{x}\). If each \({r}^{\mathrm{th}}\) item is increased by \(2r\). Then new mean will be

a

\(\overset{¯}{x}\)

b

\(\overset{¯}{x}+\frac{n}{2}\)

c

\(\overset{¯}{x}+\frac{n+2}{2}\)

d

\(\overset{¯}{x}+n+1\)

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