Question

Use step deviation method to find the mean weight of the elephant.

• A. $400kg$
• B. $300kg$
• C. $200kg$
• D. $100kg$

Answer 1

Answer: (B)

$300kg$

The formula used for step deviation method is $\overline{x}=A+\frac{\sum f{u}^{{}^{\prime }}}{\sum f}\times i$
$=100+\frac{100}{50}\times 100$
$=100+200$
$\overline{x}=300$
Therefore, the average weight of the elephant is $300kg$.