Estimate the age of husband when the age of wife is 19 ►Estimate the age of wife when the age of husband is 30 ► Calculate the coefficient correlation
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Find the two lines of regression from the following data
Age of husband Age of wife
25 18
22 15
28 20
26 17
35 22
20 14
22 16
40 21
20 15
18 14
Required
►Estimate the age of husband when the age of wife is 19
►Estimate the age of wife when the age of husband is 30
► Calculate the coefficient
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