Answer
3431.5 mg
Work Step by Step
Write the list in sorted order and find the item(s) in the center of the list.
$3414\ mg, 3417\ mg, 3419\ mg, 3427\ mg, \underset\uparrow3431\ mg, \underset\uparrow3432\ mg, 3433\ mg, 3434\ mg, 3435\ mg, 3441\ mg$
Since this set contains an even number of items, find the mean of the 2 center items to determine the median.
$\frac{3431+3432}{2}=\frac{6863}{2}=3431.5$