Which of the following statements does not contain a mistake? A. The correlation between temperature and rainfall amount of an inland city is r = 0.8986 inches. B. There is a correlation of r = 0.54 between eye color and size of a human adult eye. C. Let x be the knee height of elderly and y be the overall height of elderly. A study shows that r = 0.87. If x and y are switched (that is, x is the overall height and y the knee height), the correlation will be r = -0.87. D. A correlation of r = 0.679 was observed between height and longevity (in years) of dogs.
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.
Which of the following statements does not contain a mistake?
A. The
B. There is a correlation of r = 0.54 between eye color and size of a human adult eye.
C. Let x be the knee height of elderly and y be the overall height of elderly. A study shows that r = 0.87. If x and y are switched (that is, x is the overall height and y the knee height), the correlation will be r = -0.87.
D. A correlation of r = 0.679 was observed between height and longevity (in years) of dogs.
Step by step
Solved in 3 steps
