Question

Find the median of the following ungrouped data
1,3,9,5,3,7,9,2,6,9,5,3

• A. 3
• B. 5
• C. 5.5
• D. 6

Answer 1

The correct option is B

5

Arrange the data in ascending order
1,2,3,3,3,5,5,6,7,9,9,9
Since there are 12 observations, the median is the mean of the 6th and 7th observations.
$\therefore \text{Median}=\frac{5+5}{2}=5$