The conclusion of the research is not reasonable. This is because correlation does not imply causation. Also, other factors may explain the observed correlation such as as income increases, disposable income also increases which leads people to consume more alcohol.
Correlation is a statistical measure used to measure the linear relationship that exists between two variables.
1. Positive correlation : it mean that the two variables move in the same direction. If one variable increases, the other variable also increases. For example, as income income increases, a person drinks more.
2. Negative correlation : it mean that the two variables move in different direction. If one variable increases, the other variable decreases. For example, as income increases, a person drinks less.
3. Zero correlation : there is no relationship between the two variables.
To learn more about correlation, please check: https://brainly.com/question/10207538