A class interval has an upper limit of 15 and lower limit of 10. The lower boundary is
9.5
10.5
14.5
15.5
The table 1 shows the frequency distribution of the scores of a group of players.If 3 is the modal score, the maximum value of x is
5
6
8
9
Which of the following class interval has a size of 5?
1.1-1.5
2.05-2.10
5-9
15-20