Question

class mark of class 150_160 is​

Answer 1

Step-by-step explanation:

155 is the answer

hope it helps :-)

Answer 2

SOLUTION

TO DETERMINE

The class mark of class 150 - 160

CONCEPT TO BE IMPLEMENTED

Class Mark

For any grouped frequency table with class intervals, the middle value of the class limits or the class boundaries of any class is called class mark of the class

EVALUATION

Here the given class is 150 - 160

Upper class Boundary = 160

Lower class Boundary = 150

So the required class mark of the class is

$\displaystyle \sf{ = \frac{150 + 160}{2} }$

$\displaystyle \sf{ = \frac{310}{2} }$

= 155

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