You Are at a College of Roughly 1,000 Students and Obtain

question 11

Essay

You are at a college of roughly 1,000 students and obtain data from the entire freshman class (250 students)on height and weight during orientation.You consider this to be a population that you want to describe,rather than a sample from which you want to infer general relationships in a larger population.Weight (Y)is measured in pounds and height (X)is measured in inches.You calculate the following sums: = 94,228.8, = 1,248.9, = 7,625.9
(small letters refer to deviations from means as in = - ).
(a)Given your general knowledge about human height and weight of a given age,what can you say about the shape of the two distributions?
(b)What is the correlation coefficient between height and weight here?

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Definitions:

Prior Experience

Previous encounters or knowledge that influence how an individual perceives or reacts to new situations.

Perception

The psychological process through which people interpret sensory information in order to represent and understand the environment around them.

Psychokinesis

The purported ability to move or manipulate objects with the mind.

Mental Concentration

The ability to direct one's thinking in whatever direction one would intend, focusing mental efforts on a specific object, task, or subject.