Question

what is the mean of first ten natural numbers

Answer 1

mean =(1+2+3+4+5+6+7+8+9+10)/10
=55/10
=5.5

Answer 2

ok you know natural numbers are
1,2,3,4,5,6,7,8,9,10 .......

mean=sum of all observation / no of observation

so --- 1+2+3+4+5+6+7+8+9+10=55/10

=5.5 is the median of 1st ten natural numbers