Suppose we have data for 1000 students for a period of one year. The data show that those students who spend more hours studying have a higher grade point average (GPA). We can say that
A)there is a positive correlation between hours of study time and GPA.
B)more hours spent studying leads to a higher GPA.
C)if hours of study time increase, then GPA will automatically increase.
D)there is a causal relationship between hours of study time and GPA.
E)having a higher GPA leads students to spend more time studying.

Question

Quizplus · Accepted Answer

The data show a positive correlation between hours of study time and GPA, meaning that as one variable increases, the other tends to increase as well. However, this does not necessarily imply a causal relationship between the two variables or that studying more hours will automatically lead to a higher GPA. Other factors may be involved, such as natural intelligence or motivation level. Additionally, the data do not provide evidence about whether having a higher GPA leads students to spend more time studying.

Suppose We Have Data for 1000 Students for a Period