Question

what is the class mark of the class interval 40-50

Answer 1

class mark is upper limit +lower limit /2 here is 40+50/2 that is 45...... please mark it as brainlist

Answer 2

Answer:

Class mark of the class interval 40-50 is 45

Explanation:

Given class interval (40-50)

Lower limit = 40

Upper limit = 50

$\boxed {class\: mark (x)=\frac{lower limit + upper limit )}{2}}$

$class \: mark = \frac{40+50}{2}$

$\implies x = \frac{90}{2}$

$\implies x = 45$

Therefore,

Class mark of the class interval 40-50 is 45

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