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Friday, 30 December 2011

free math courses

Free Math Help Online

Finding help in mathematics is not easy. The has too difficult to find the solutions in same cases/problems.  
Free math Education gives you a new platform to do homework/ solutions for your math problems.  

Free math education gives you the detailed course structure of algebra, geometry and Trigonometry course which is helpful for all the grades. This is also useful for school and collage levels including parents also. Many different sources available to help with math homework , online tutoring. free math help, solution on request in mail and many more.

Thursday, 29 December 2011

algebra tutoring help

Get Pre Algebra help online with Free ath Education Online Tutorials. You can solve problems, Using basic concepts and get help with your homework too.
Free Math Education Algebra tutoring prepares you for high school Algebra. Study with tutors with many years of experience in mathematics and also ensure that you understand the subject and score well in it.

For more Information of courses of algebra, geometry,  click on the link given below.

Friday, 2 December 2011

correlation and regression formula

Correlation and Regression

Correlation identify the degree of relationship between the two variables and Regression is used to study the nature of relationship between these variables.

In Case of bivariate population, we calculate the correlation coefficient by cross tabulation method, Charlie Spearman's coefficient and Karl Pearson Coefficient.

Cross tabulation is useful when given data are in nominal form. Under it we can classify each variable into two or more categories and then cross classify the variables in these sub categories.
1.  Symmetrical
2.  Reciprocal
3.  Asymmetrical

In Symmetrical relationship is one in which the two variables are vary together, i.e. if one is increase or decrease other variable is also increase of decrease.

In case of Reciprocal relationship, when the two variables are mutually influence or reinforce to each other.

Asymmetrical relationship is exist if one variable (independent variable) is responsible for other variable (dependent variable).

Charlie Spearman's Rank Correlation Coefficient :
Correlation and Regression : Charlies Spearman's Coefficient of Regression

Karl Pearson Correlation Coefficient:
Correlation and Regression : Karl Pearson Coefficient of Regression
Free Math Education Online Tutoring

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