The answer is two thousand (2000)
Instead use WolframAlpha.com for math questions I would paste the answer but a cretinous fop has "disabled" that feature by javascript -- which is trivial to circumvent but I won't bother with the time.
Range: maximum - minimum
IQR: third quartile - first quartile
median: middle number once all numbers are put in numerical order
It’s not going to be C because 10 is already in the question
