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What serves as standard of comparison to evaluate effect of the independent variable on dependent variable?
The correlation coefficient, plus graphical methods to verify the validity of a linear relationship (which is what the correlation coefficient measures), and the appropriate tests of the statisitical significance of the correlation coefficient.
Compare and contrast the methods of software project estimating known as size-related estimates and function related estimates?
thanx
Distinguish between correlation and regression?
Correlation is a measure of the degree of agreement in the changes (variances) in two or more variables. In the case of two variables, if one of them increases by the same amount for a unit increase in the other, then the correlation coefficient is +1. If one of them decreases by the same amount for a unit increase in the other, then the correlation coefficient is -1. Lesser agreement results in an intermediate value. Regression involves estimating or quantifying this relationship. It is very important to remember that correlation and regression measure only the linear relationship between variables. A symmetrical relationshup, for example, y = x2 between values of x with equal magnitudes (-a < x < a), has a correlation coefficient of 0, and the regression line will be a horizontal line. Also, a relationship found using correlation or regression need not be causal.
What are the advantages and disadvantages of data collection methods in statistics?
There are both advantages and disadvantages of data collection methods in statistics. The main advantages are the metrics and correlation one can draw from statistics. The disadvantages stem from sampling errors.
Why the estimate of the radius and not the diameter?
Estimating one of them is equivalent to estimating the other.
What methods are used in estimating animal populations apart from quadrats?
hi!
What are the different methods of estimating working capital requirement of a firm?
There are two main methods of estimating working capital within a firm. These include the conventional method which measures cash flow, and the concept of operating cycle.
How can you estimate the value of an irrational number?
There are different methods for estimating irrational numbers. For numbers like pi or e, there are infinite series which can be used to calculate their value to the required degree of accuracy. There are numerical methods - such as the Newton-Raphson iteration - for estimating roots of numbers.
What has the author M Ezekiel written?
M. Ezekiel has written: 'Methods of correlation and regression analysis'
What are The two methods of estimating the amount of crime in the US?
Uniform Crime reports and National Crime Victimization Survey
What serves as standard of comparison to evaluate effect of the independent variable on dependent variable?
The correlation coefficient, plus graphical methods to verify the validity of a linear relationship (which is what the correlation coefficient measures), and the appropriate tests of the statisitical significance of the correlation coefficient.
Compare and contrast the methods of software project estimating known as size-related estimates and function related estimates?
thanx
What is cancer staging?
There are a few standard methods of comparing one cancer to another for the purposes of comparing treatments and estimating outcomes. These methods are called "staging." The most universal method is the TNM system.
What has the author KG Nozhko written?
K.G Nozhko has written: 'Methods of estimating the demand for specialists and of planning specialized training within the U.S.S.R'
What has the author J V M Sharma written?
J. V. M. Sharma has written: 'Methods of estimating income-elasticity of taxes'
What has the author Tun Sein written?
Tun Sein has written: 'Investigations into the use of indicator methods of estimating the digestibilities of feeds by ruminant animals'
What methods for estimating retirement income needs assumes retirement expenses will be some fixed proportion of your preretirement needs?
The replacement ratio method assumes that retirees will need a certain percentage of their preretirement income to maintain their standard of living in retirement. Typically, 70-80% of preretirement income is suggested for this method. It is based on the assumption that some expenses may decrease in retirement, such as commuting costs, but it doesn't consider individual circumstances, like healthcare expenses or lifestyle choices.
