Question

(a) Calculate the arithmetic mean of $5.7,6.6,7.2,9.3,6.2$
(b) The weight (in kg) of $8$ new born babies are $3,3.2,3.4,3.5,4,3.6,4.1,3.2$. Find the mean weight of the babies.

Answer 1

$\left(a\right)$

Mean $=\frac{5.7+6.6+7.2+9.3+6.2}{5}$

$=\frac{35.1}{5}$

$=7.02$

$\left(b\right)$

The weight of $8$ new born babies are $3,3.2,3.4,3.5,4,3.6,4.1,3.2$

Mean $=\frac{3+3.2+3.4+3.5+4+3.6+4.1+3.2}{8}$

$=\frac{28}{8}$

$=3.5$