Question

The median for grouped data is formed by using the formula:

• A. L + ( ) h
• B. L - ( ) h.
• C. L + ( ) h.
• D. L +

Answer 1

The correct option is A

L + ( ) h

The median for grouped data is formed by $l+\left(\frac{\frac{n}{2}-c_f}{f}\right)\times h$

Where $l$ is the lower class limit of median class.
$n$ is the total number of observations.
$c_f$ is the cumulative frequency of the class preceding the median class.
$f$ is the frequency of the median class and $h$ is the class size.