Scatter diagrams

The possible relationships between two variables are identified using scatter diagrams. In order to understand data as a whole, it is very important to understand the relationships among data elements. The steps to create a scatter diagram are:

1.  Define the theoretical relationship: Relationships between variables are not always obvious. It is easy to assume the relationship between variables.  The first  step  is  to  identify the  two  variables  that  will  be examined.

2.  Collect 50 to 100 paired samples of data: Analysis is based on a sufficient amount of data. Less data will result in erroneous conclusions.

3.  Plot the data on x-y axis: The horizontal axis or x-axis should be used for independent variables. These variables are the base. If there is a relationship between the base and data of other variables, then when the base changes, the data of other variable also changes. The y-axis is used for the dependent variables. These variables will surely change if the base changes.

4.  Interpret the data: Find regular patterns among the plotted points.

The figure shows example of scatter diagrams.

Figure: Scatter Diagram

Posted Date: 9/28/2012 6:59:31 AM | Location : United States

Ask an Expert

Related Discussions:- Scatter diagrams, Assignment Help, Ask Question on Scatter diagrams, Get Answer, Expert's Help, Scatter diagrams Discussions

Write discussion on Scatter diagrams
Your posts are moderated

Write your message here..

Related Questions

Define the resource histograms in short, Define the Resource Histograms in ... Define the Resource Histograms in short. Resource histograms A resource histogram is a column (or bar) chart which demonstrates the number of resources allocated to a pro

Steps of project manager to enhance likelihood of project, Ideally, the nee... Ideally, the need for an IS project would be given in some detail before planning begins. When the requirement is not detailed adequate, what steps can the project manager take to

Managing project quality as per pmi, M a n a ging Project Quality as pe... M a n a ging Project Quality as per PMI Project Management Institute (PMI) is a global organisation for the project management profession; it is engaged in setting professi

Components of supply chain management, Components of Supply Chain Managemen... Components of Supply Chain Management Today, it is the basic requirement amongst customers that businesses produce defect-free products to the customer faster and be more consi

Cost of failure of quality, Failure Cost of failure may result from eit... Failure Cost of failure may result from either internal failure or external failure. Internal failures are those that occur before the product is delivered, internal failure co

Quantity to be manufactured, Quantity to be manufactured When only ... Quantity to be manufactured When only few parts are to be manufactured we cannot use the processes involving more setups, costly tools and special purpose machines. The use

How could huge supermarket chain use in information system, When you knew a... When you knew about an organisation’s strategy, that could you suggest IS applications which would support this? For illustration, how could a huge supermarket chain utilize inform

Quality standards, Quality Standards Quality Standards form a framework... Quality Standards Quality Standards form a framework that helps organisations worldwide to develop products and services in the most efficient way. A quality Standard is a norm

Explain the new performance management system, Question 1: (a) How does... Question 1: (a) How does Training differ from Development? (b) Elaborate on the different training methods, highlighting their relative advantages and disadvantages. Ques

Methods used to performance appraisal of workers, What are the methods used... What are the methods used to performance appraisal of workers? The methods used within performance appraisal of workers are ranking method, Paired Comparison Technique, Forced