Question

The coefficient of range of a set of data is given to be $\frac{1}{8}$. Then the ratio of the maximum value in the data to the minimum value is:

• A. $\frac{8}{1}$
• B. $\frac{9}{8}$
• C. $\frac{9}{7}$
• D. $\frac{8}{7}$

Answer 1

The correct option is C $\frac{9}{7}$

Coefficient of range of a set of data is given by $\frac{max-min}{max+min}$
$\frac{max-min}{max+min}=\frac{1}{8}$
$8max-8min=max+min$
$7max=9min$
$\frac{max}{min}=\frac{9}{7}$