A researcher is interested in learning how strong is the association be- tween the sodium intake and systolic blood pressure of 12 individuals listed below. ВР 154 167 162 173 190 158 Sodium 6.8 7.0 6.9 7.2 7.3 7.0 ВР Sodium 7.0 7.5 7.3 7.1 6.5 6.4 166 195 189 186 148 140 Compute the estimate of the slope bị of the regression equation. (Ap- proximate your answer in three decimal places)
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.
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