Question

find the sequence 80,525 80,544 80,564​

Answer 1

Answer:

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

Step-by-step explanation: