Question

find the class mark of the class 75-80

Answer 1

hii viewer here's ur answer

true lower limit of class=upper limit of class-0.5

=85-0.5=84.5

The difference between the true upper limit and lower limit is called the class size of that class size.

so class size=84.5-80=4.5

hope ull get the answer mark as brainliest one..