HELP ME! ITS WORTH 55 POINTS PLZ DONT LIE!

The dot plots below show the scores for a group of students who took two rounds of
a quiz:
Round 1
Score
Round 2
8
7
Score
Which of the following inferences can be made using the dot plot? (5 points)
1) The range of each round is the same.
2) There is no overlap between the data.
3) Round 1 scores were higher than round 2 scores.
4) Round 2 scores were lower than round 1 scores.