Median just means that half the instructors earn greater than that per month for that topic. If you arrange the instructors earnings in an increasing order, the one in the middle is the median. Also, note that these numbers also include Udemy's share (not just instructor). It's a little misleading. Top monthly revenue Average monthly revenue per course (includes both Udemy's and instructors' share) of the top courses over the last 3 months (not including the current month).
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