Sort the data

To find the median, first arrange the observations in ascending order: 11, 12, 14, 15, 19.

$11, 12, 14, 15, 19$

Identify n

Count the total number of observations. Here, $n = 5$, which is an odd number.

$n = 5$

Calculate the position

Since n is odd, the median is the value at the $\frac{n+1}{2}$ position.

$\text{Position} = \frac{5+1}{2} = 3^{rd} \text{ term}$

Select the median

The 3rd term in the sorted sequence 11, 12, 14, 15, 19 is 14.

$\text{Median} = 14$