Demerits and merits -the arithmetic mean or a.m, Mathematics

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







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
Related Questions
Integrals Involving Quadratics To this point we have seen quite some integrals which involve quadratics.  Example of Integrals Involving Quadratics is as follow: ∫ (x / x 2

Consider the function f(x) = 2x 2 + 1. Find the equation of the tangent to the graph of f(x) at x = 2. [NOTE: when calculating f'(2), use first principles.

Q. What is Stem-and-Leaf Plots? Ans. A stem-and-leaf plot is a table that provides a quick way to arrange a set of data and view its shape, or distribution. Each data val

MINIMAX regret method Minimax method assumes that the decision maker will experience 'regret' after he has made the decision and the events have happened. The decision maker ch

The temperature at 6 P.M. was 31°F. Through midnight, it had dropped 40°F. What was the temperature at midnight? Visualize a number line. The drop from 31° to 0° is 31°. There

Higher Order Derivatives : Let's begin this section with the given function.                            f ( x ) = 5x 3 - 3x 2 + 10 x - 5 By this point we have to be a

f(x)=sin x+cos x in the interval {0,90}


Determine whether the following numbers are odd or even: Examples: Determine whether the following numbers are odd or even:  364, 1068, & 257. Solution: 1.

Rejection and Acceptance regions All possible values which a test statistic may either suppose consistency along with the null hypothesis as acceptance region or lead to the re