Question

Help meee please if you don't know it please don't answer

Answer 1

a.

1 + 2 + 1 + 2 + 6 + 9 + 13 + 5 = 39

b.

Final Scores | Frequency

30 1

40 2

50 1

60 2

70 6

80 9

90 13

100 5

c.

`(9+13+5)/(39)=\\\\(27)/(39)=\\\\69`

69% of students scored 80 or greater.