9. In a study of the relationship between health risk and income, a large group of peopleliving in Massachusetts were asked a series of questions. Some of the results are show in the following table. Round to two decimal places. Income Medium High 274 Low Total Stress Level Stressed 526 216 1,016 Not Stressed 1,954 1,680 Total 1,899 5,533 2,115 6,549 2,480 1,954 Is being stressed independent of having high income? Explain.
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.
- In a study of the relationship between health risk and income, a large group of people living in Massachusetts were asked a series of questions. Some of the results are show in the following table. Round to two decimal
Is being stressed independent of having high income? Explain.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
