A climatologist wants to determine the thickness of a glacier with a surface area of about 2 km2. He selected 12 locations at random on the glacier and then measured the thickness of the glacier, in meters, at each location.
29, 41, 38, 36, 29, 34, 44, 46, 43, 35, 40, 47
What is the estimated median thickness of the entire glacier?
___m