Question

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

Answer 1

Answer:

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.

$\frac{9+13+5}{39}=\\\\\frac{27}{39}=\\\\69$

69% of students scored 80 or greater.