What is the difference between class marks and class intervals ???
Answers
Answered by
2
class marks are given in question. class interval means the difference bewteen lower boundary and upper boundary.
Answered by
1
For example - Let a class intreval be 10-20
thus, the formula for its class mark is
(upper limit + lower limit)/2
In the given case, class mark = (10+20)/2
=30/2
=15
thus, the formula for its class mark is
(upper limit + lower limit)/2
In the given case, class mark = (10+20)/2
=30/2
=15
Similar questions