Demerits and merits of the measures of central tendency

The arithmetic mean or a.m

Merits

i.  It employs all the observations given

ii. This is a very useful statistic in terms of applications. This has some applications in business management for illustration as: hypothesis testing, quality control and so on.

iii. This is the best representative of a described set of data if such data was acquired from a normal population

iv. The arithmetic mean can be determined accurately by using mathematical formulas

Demerits

i. If the data is not drawn from a 'general population, then the arithmetic mean may provide a wrong impression about the population

ii. In some situations, the arithmetic mean may provide unrealistic values especially when dealing along with discrete variables for illustration as: when working out the average no. of children in a number of families. This may be found that the average is 4.4 which is un-realistic in human beings

 

Posted Date: 2/16/2013 6:28:24 AM | Location : United States

Ask an Expert

Related Discussions:- Demerits and merits -the arithmetic mean or a.m, Assignment Help, Ask Question on Demerits and merits -the arithmetic mean or a.m, Get Answer, Expert's Help, Demerits and merits -the arithmetic mean or a.m Discussions

Write discussion on Demerits and merits -the arithmetic mean or a.m
Your posts are moderated

Write your message here..

Related Questions

Learn, smart mind smart mind

Algebra, 52/7 52/7

Systems of linear equation, a man can row a bangka at a rate of 5 km/h in s... a man can row a bangka at a rate of 5 km/h in still water. It takes 10 minutes longer to row upstream a distance of 2km than he takes to row downstream. What is the rate of the cur

Conditional statement, if two lines in s plane never intersect then they ar... if two lines in s plane never intersect then they are parallel

The geometric index or industrial share index, The Geometric Index or Indus... The Geometric Index or Industrial Share index The Geometric Index or Industrial Share index is an index of 30 selected top industrial companies. This is calculated by taking a

Profit and loss, a shopkeeper buys two cameras at the same price . he sells... a shopkeeper buys two cameras at the same price . he sells one camera at a profit of 18% and the other at a price of 10% less than the selling price of the first camera. find his p

Circles, how to find equations of circles when given equations of centres o... how to find equations of circles when given equations of centres on which it lies?

Erin is painting a bathroom what is the area to be painted, Erin is paintin... Erin is painting a bathroom along with four walls each measuring 8 ft through 5.5 ft. Ignoring the doors or windows, what is the area to be painted? The area of the room is the

Example of differential equations, y(x) = x -3/2 is a solution to 4x 2 y′... y(x) = x -3/2 is a solution to 4x 2 y′′ + 12xy′ + 3y = 0 , y (4) = 1/8 , and y'(4) = -3/64 Solution :  As we noticed in previous illustration the function is a solution an

.fractions, what is the difference between North America''s part of the tot... what is the difference between North America''s part of the total population and Africa''s part