What are the mean, median, mode, and range of the data set given the altitude of lakes in feet:–11, –28, –17, –25, –28, –39, –6, and –46?

first, sort the values:

-46 -39 -28 -28 -25 -17 -11 -6
mean: add 'em up and divide by 8
median: (-28-25)/2 = ____
mode: -28
range: -6-(-46) = 40

median: -26.5
mode: -28
range: 40