<image> In a district-wide examination of mathematics for ninth-grade students, the scores of 200 randomly selected students were recorded, with all scores ranging between 50 and 100 points. The scores were divided into 5 groups as follows: the first group, scores >= 50 points and < 60 points; the second group, scores >= 60 points and < 70 points; ... the fifth group, scores >= 90 points and <= 100 points. Based on this, a frequency distribution histogram was created as shown in the image. Thus, the number of students with scores >= 80 points and < 90 points among these 200 students is ____ .