Find the Median 11 , 21 , 30 , 29 , 7 , 26 , 18 , 12 , 3 , 10 , 12 , 15

$11$ , $21$ , $30$ , $29$ , $7$ , $26$ , $18$ , $12$ , $3$ , $10$ , $12$ , $15$

Step 1

Arrange the terms in ascending order.

$3, 7, 10, 11, 12, 12, 15, 18, 21, 26, 29, 30$

Step 2

The median is the middle term in the arranged data set. In the case of an even number of terms, the median is the average of the two middle terms.

$\frac{12 + 15}{2}$

Step 3

Remove parentheses.

$\frac{12 + 15}{2}$

Step 4

Add $12$ and $15$ .

$\frac{27}{2}$

Step 5

Convert the median $\frac{27}{2}$ to decimal.

$13.5$