Since I'm not sure where you are getting your numbers, I'm assuming it is from looking at the instructor profile. It lists the total number of students, and with each course, next to the star rating, lists the number of ratings/reviews, not students. On the landing page the same is true, number of students and number of reviews. A rule of thumb is where the number of students far exceeds the number of ratings, the course probably had a lot of nonpaying students. Most veterans suggest not giving away free coupons. Let us know where you found your numbers and someone will have a good answer.
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