Astudy that tells us whether two variables are associated, but does not tell us if one variable causes or influences the other, is:

Correlational Studies

Explanation: Correlational Studies is used to identify or establish the relationship between two variables or more variables. However, correlation studies fails to establish the fact that a change in one variable influences or causes the corresponding change in the other variable known as causal relationship. It shows how an increase or decrease in one variable affects the other but doesn't cause of the change which could be investigated using experimental study.

true

explanation:

agreeableness is a personality trait manifesting itself in individual behavioral characteristics that are perceived as kind, sympathetic, cooperative, warm, and considerate.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.