Question

While computing the arithmetic mean of a frequency distribution, the each value of a class is considered

equal to:

(A) Class mark

(B) Lower limit

(C) Upper limit

(D) Lower class boundary​

Answer 1

Given : computing the arithmetic mean of a frequency distribution,

To Find : each value of a class is considered equal to:

(A) Class mark

(B) Lower limit

(C) Upper limit

(D) Lower class boundary​

Solution:

each value of a class is considered equal to:  Class mark

class mark is the mid-value  of a class.

class mark is the central value  of a class.

 Class mark = ( lower limit + upper limit )/2

While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to  Class mark

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