Question

The following table gives the
result of certain examination
for 180 students
a find the value of ac.
b] Draw histogram
Marks 0-10 10-20 20-30 30-40 40-50 50-60
No of 10 x 25 2x 55 30
students
​

Answer 1

Answer:

Class mark=upper class limit +lower class limit/2

Step-by-step explanation:

10+20/2

==> 30/2

==>15

Similarly you can solve this question by formula above