MathematicsClass mark of any interval is

Class mark of any interval is

A
$\frac{Lower lim it + Upper lim it}{2}$
B
$\frac{Lower lim it - Upper lim it}{2}$
C
$\frac{Upper lim it - Upper lim it}{2}$
D
$\frac{Lower lim it + Upper lim it}{3}$

Solution:

Mean

= \frac{Lower Limit + Upper limit}{2}

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