1. The set of data shows a score of 35 students in their periodical test.

34 35 40 40 48 21 9
21 20 19 34 45 21 20
19 17 18 15 16 20 28
21 20 18 17 10 45
45 48 19 17 29 45 50 48 25

1. What score is typical to the group of students? Why?
2. What score frequently appears?
3. What score appears to be in the middle? How many students fall below this score?

Pahelp po plz​