Question

Find the class mark of the class interval 65-68​

Answer 1

Answer:

class mark =lower limit by 2

Answer 2

Given : class interval 65-68​

To Find :  class Mark

Solution:

class mark is the mid-value  of a class.

class mark is the central value  of a class.

Class interval = 65 - 68

class mark  = ( 65 + 68)/2

= ( 133)/2

= 66.5

66.5 is the class mark of the class interval 65-68​

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