Question

Girls' heights are given in inches in the table below. What is the average girl's height?

$65$

$72$

$75$

$68$

$67$

$66$

$71$

$63$

$59$

$64$

• A.
  $64.5$ inches
• B.
  $65$ inches
• C.
  $66$ inches
• D.
  $67$ inches

Answer 1

The correct option is D

$67$ inches
Given: number of girls $=10$
So, sum of their heigths $=670$ inches
Thus,
$\text{Average height}=\frac{\text{Sum of their heights}}{\text{Total number of girls}}$
$=\frac{670}{10}$
$=67$ inches