And then it turns out that the median of the test scores equal to 57, which is in the range of 50-59 If examination students score lower than 49.5 is 12 people and students who score lower than 59.5 are number 20.
It turns out that the median score is 57, which is in the range 50-59, if there are students who have scored less than 12 patients were 49.5 and 59.5 are students who scored less than 20.
Then it turns out that the median score is equal to 57 which range 50-59 if students passing the exam score ตํ่า than 49.5 is the 12 people. And there are students who score lower than 59.5 is the 20.