Question

find the mean of the first n even natural numbers

Answer 1

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.......... the sum of first n even number is n(n+1), for find the Average of first n even numbers divide by n, hence formula is n(n + 1) / n = ( n + 1).........

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Answer 2

${\large\bf{\mid{\overline{\underline{Question:-}}}\mid}}$

• Find the mean of first n even natural numbers ?

$\Large\bold\star\underline{\underline\textbf{Formula\:used}}$

• Sum of n even numbers = n(n+1)
• $\large\red{\boxed{\sf mean \: = \frac{sum \: of \: observation}{total \: observation}}}$

$\Large\underline{\underline{\sf{Solution}:}}$

$\textbf{we have to Find mean of n even numbers.}$

Putting Values in above Formula we get,

$\red\leadsto \green{Mean} =\large\boxed{\bold{\pink {\frac{ \cancel n(n + 1)}{\cancel n}}}} \\ \\ \red\leadsto \orange{Mean} = \large\boxed{\bold{(n + 1)}}$

$\textbf{Hence, mean of n even numbers is (n+1)}$

$\large\underline\textbf{Hope it Helps You.}$