Question:
Find the mean of first ten even natural numbers.
Solution:
The first five even natural numbers are 2 , 4 , 6 , 8 , 10 , 12 , 14 , 16 , 18 , 20
$\therefore$ Mean $=\frac{\text { Sum of numbers }}{\text { Total numbers }}$
$=\frac{2+4+6+8+10+12+14+16+18+20}{10}=11$
Mean = 11
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