Question

in class interval 30-50 find the width of the given class
​

Answer 1

⇒ 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.
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