Question

The class mark of interval 180-190 will be

Answer 1

Answer:

it will be 185

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Lower class limit= 180

Upper class limit= 190

Now,

CLass mark= lower class+ upper class/2

Class mark= 180+190/2

Class mark= 370/2

= 186

Class mark of interval 180-190

Is 186

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