Question

write the relation between class mark lower limit and upper limit of a class interval​

Answer 1

Answer:

Class Mark =lower limit+upper limit.

Class Interval =upper limit-lower limit.

HOPE IT HELPS!

Answer 2

Answer:

Note :-

1) In inclusive class intervals formed with limit values

【 Lower Limit , Upper Limit 】

2) In Exclusive class intervals formed with boundary values

【 Lower boundary , Upper boundary 】 .

===> 0-9 , 10-19 , 20-29 ......are called Inclusive class intervals .

===> 0-10 , 10-20 , 20-30 ......are called Exclusive class intervals .