A medical study on the systolic blood pressure readings (top number) on men over 40 years old results in the data below. The x-value is the number of years past 40 years old and the y-value is the systolic blood pressure reading. x y 8 63 11 77 14 86 17 90 20 140 Find the least squares regression line modeling this data. What is the slope of the regression line? Round your answer to three decimal places. Provide your answer below:
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.
A medical study on the systolic blood pressure readings (top number) on men over 40 years old results in the data below. The x-value is the number of years past 40 years old and the y-value is the systolic blood pressure reading.
| x | y |
|---|---|
| 8 | 63 |
| 11 | 77 |
| 14 | 86 |
| 17 | 90 |
| 20 | 140 |
Find the least squares regression line modeling this data. What is the slope of the regression line? Round your answer to three decimal places.
Provide your answer below:
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