Question

find the class mark of the class interval 55.5 to 65.5​

Answer 1

Answer:

⇒ Classmark=

2

Lowerlimit+Upperlimit

⇒ Given class interval is 50−60

⇒ Lower limit =50 and upper limit =60

∴ Classmark=

2

50+60

=

2

110

=55

∴ The class mark of class onterval 50−60 is 55.