Triples and Home Runs The data below show the number of three-base hits (triples) and the number of home runs hit during the season by a random sample of MLB teams. Triples 21 33 37 27 32 40 Home runs 319 293 294 298 308 266 The correlation coefficient for the data is r=−0.843 and α=0.05. Should regression analysis be done? The regression analysis should not be done. The regression analysis should be done.
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.
Triples and Home Runs The data below show the number of three-base hits (triples) and the number of home runs hit during the season by a random sample of MLB teams.
| Triples |
21
|
33
|
37
|
27
|
32
|
40
|
|---|---|---|---|---|---|---|
| Home runs |
319
|
293
|
294
|
298
|
308
|
266
|
|
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