Question

what is the weighted mean of first 10 natural numbers whose weight is equal to the corresponding numbers

Answer 1

I hope this answer help you

Answer 2

Answer:

7

Step-by-step explanation:

Weighted mean = $\frac{w_1x_1+w_2x_2+.....+w_nx_n}{w_1+w_2+...+w_n}$

First ten natural numbers are 1,2,3,4,5,6,7,8,9,10

Since we are given that weight is equal to the corresponding number

So, weight of 1 is 1

Weight of 2 is 2

And So on..

Substitute the value in formula:

= $\frac{1*1+2*2+3*3+4*4+5*5+6*6+7*7+8*8+9*9+10*10}{1+2+3+4+5+6+7+8+9+10}$

= $7$

Hence the weighted mean of first 10 natural numbers is 7