Question

write mean formula. find the mean of 1st 10 natural numbers

Answer 1

$\boxed{\boxed{\mathsf{5.5}}}$
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Mean = $\mathsf{\frac{Sum \: of \: All \: Observations}{Total \: Number \: of \: Observations}}$

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$\large{NATURAL NUMBERS}$

All $\textbf{Positive numbers}$ are Natural Numbers.

0 isn't included since it is neither $\textbf]Positive number}$ nor $\textbf{Negative number.}$

Now, $\textit{First 10 Natural Numbers}$ are:

$\mathsf{1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }$

$\textbf{Their sum}$ = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55

$\textbf{Total Number of Observations}$= 10

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Now, substituting values in the Mean Formula, we get,

$\mathsf{\frac{55}{10}}$

=> Mean = $\boxed{\mathbf{5.5}}$

Hence, the mean of First 10 Natural Numbers is $\mathbf{5.5}$.
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Answer 2

Hey there!!

Question:- formula of MEAN

Answer:- sum of total observation/ total numbers of observation.

Question:- find the mean of 1st 10 natural numbers.

Answer:- To find sum we have to find first total numbers.

As we know natural numbers start from 1 so here according to question total numbers are 10 ( 1 to 10 )

And the sum of numbers => 55

So the mean is => 55/10 => 5.5

Hope it helps you.