Describe a real example of each of the following: a negative correlation, a positive correlation, and a zero correlation Describe a real example of each of the following: a negative correlation, a positive correlation, and a zero correlation

Answer 1

ANSWER:
?The sign before the correlation coefficient tells us how the variables relate to one another. A positive correlation means that as one variable increases, the other variable also tends to increase; or as one variable decreases, the other variable tends to decrease. In both cases, the variables are changing in the same direction. An example of a positive correlation is perceived stress and blood pressure. As perceived stress increases, so does one’s blood pressure. In a negative correlation, as one variable increases, the other variable tends to decrease in what is referred to as an inverse relationship. Notice that the variables are changing in opposite directions. An example of a negative correlation is video game playing and school competence. The more time children spend playing video games, the poorer their competence is at school. A zero correlation would indicate there is no systematic relationship between two variables. For example, there is likely no systematic relationship between the number of hours a college student spends studying and his or her height.