Question

see questions in image

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Answer 1

Answer:

hey there you will understand it in class 10....

Answer 2

Answer:

Class Mark = 10

Class Width = 6

Class Mark is the middle value of class.

Class width also known as class size is upper limit - lower limit.

Class Interval :

Lower Limit

Half of class width subtracted from class mark = 10 - 3 = 7

Upper Limit

Half of class width added to class mark = 10 + 3 = 13

Hence, the class interval is

7 - 13

Verification

Class Width

13 - 7 = 6

Class Mark = 10

Step-by-step explanation:

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