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Question

The midvalue of the class interval (a-b) is
$\sqrt{a b}$
$\frac{a + b}{2}$
$\frac{a \times b}{2}$
$\frac{a - b}{2}$

A

\frac{a - b}{2}

B

\sqrt{a b}

C

\frac{a \times b}{2}

D

\frac{a + b}{2}

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Solution

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Midvalue of class interval=Sumofclassboundaries2=a+b2

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