Question

Height (in $cm$) of $7$ boys of a locality are $144cm,155cm,168cm,163cm,167cm,151cm$ and $158cm$. Find their mean height.

Answer 1

Height of $7$ boys of a locality $=144cm,155cm,168cm,163cm,157cm,151cm$ and $158cm$
Hence, the mean can be calculated as follows :
Mean $=$ Sum of height $/$ Number of boys
$=(144+155+168+163+167+151+158)/7$
We get,
$=1106/7$
$=158cm$
Therefore, mean height $=158cm$