Suppose We Randomly Selected 250 People,and on the Basis of Their

question 87

Multiple Choice

Suppose we randomly selected 250 people,and on the basis of their responses to a survey we assigned them to one of two groups: high-risk group and low-risk group.We then recorded the blood pressure for the members of each group.Such data are called:

• A)observational.
• B)experimental.
• C)matched.
• D)None of these choices.

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Definitions:

Attractive

Having qualities that appeal to a sense of beauty or aesthetic preference.

Body Postures

The positions or arrangements of the body and its limbs, which can communicate nonverbal cues or affect physical and psychological states.

Hand Gestures

Movements of the hands and arms used to convey messages non-verbally, integral to communication and expression.

Eyes

Organs of vision that detect light and convert it into electro-chemical impulses in neurons for visual perception.