Question

class mark of the class interval 10 - 20 is​

Answer 1

Step-by-step explanation:

The class mark of a class interval = Actual lower limit + Actual Upper Limit2

= Sum of Class Boundaries2

The class mark of the overlapping class interval 10 – 20

= 10+202

= 15.

The class mark of the overlapping class interval 11 – 20 (when the intervals are 1 – 10, 11 – 20, 21 – 30, etc.)

= 10.5+20.52

= 15.5

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Answer 2

Step-by-step explanation:

फाइंड द क्लास मार्क ऑफ़ इंटरवल 2020