Agroup of 23 students participated in a math competition. their scores are below:

score (points) 20–29 30–39 40–49 50–59 60–69
number of students 4 7 5 4 3

would a dot plot or a histogram best represent the data presented here? why?
histogram, because a large number of scores are reported as ranges
histogram, because a small number of scores are reported individually
dot plot, because a large number of scores are reported as ranges
dot plot, because a small number of scores are reported individually