What does it mean to say that two variables are negatively correlated?
(1 point)
Responses
When one variable increases, the other decreases.
When one variable increases, the other decreases.
When one variable increases, the other also increases.
When one variable increases, the other also increases.
When one variable decreases, the other also decreases.
When one variable decreases, the other also decreases.
Both variables change at the same rate.
When one variable increases, the other decreases.
The correct response is: When one variable increases, the other decreases.
When two variables are said to be negatively correlated, it means that as one variable increases, the other variable tends to decrease. In other words, there is an inverse relationship between the two variables.
To understand if two variables are negatively correlated, you can perform a statistical analysis. One commonly used measure is the correlation coefficient. By calculating this coefficient, you can determine the strength and direction of the relationship between the variables. A negative correlation coefficient indicates a negative or inverse relationship between the variables. The correlation coefficient ranges from -1 to +1, with -1 indicating a perfect negative correlation, and +1 indicating a perfect positive correlation. The closer the correlation coefficient is to -1 or +1, the stronger the relationship between the variables.