Find the Median 9 , 20 , 4 , 18 , 4 , 18 , 20 , 9

$9$ , $20$ , $4$ , $18$ , $4$ , $18$ , $20$ , $9$

Step 1

Arrange the terms in ascending order.

$4, 4, 9, 9, 18, 18, 20, 20$

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.

$\frac{9 + 18}{2}$

Step 3

Remove parentheses.

$\frac{9 + 18}{2}$

Step 4

Add $9$ and $18$ .

$\frac{27}{2}$

Step 5

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

$13.5$