7.LY. Marks o'brained hy 35
students of a.
Class are given in the table.
Marks / 10/ 20/ 30 / 40 / 50 60 70
No 6 4 2 10 8 3 2

(1) what is the mode
3 Construct cf table
().find me first quartile.
a what is the value representing 75%