A Statistics Instructor Wishes to Know the Average Age (In

question 41

Multiple Choice

A Statistics instructor wishes to know the average age (in month) of his 200 students.He decides to choose 25 students from the class and ask them for their age.All 200 names are put in a hat and 25 names are then chosen at random (without replacement) .The average age of the students chosen is observed to be 231 months.In this example,"200" is known as what?

• A)The sample
• B)A census
• C)The population
• D)The population size
• E)The sample size

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Definitions:

Depth Perception

Depth Perception is the visual ability to perceive the world in three dimensions and to judge the distance of objects accurately.

Continuity

The continuous and steady presence or functioning of something throughout a duration of time.

Perceptual Constancy

Perceiving objects as unchanging (having consistent color, brightness, shape, and size) even as illumination and retinal images change.

Figure-Ground

The organization of the visual field into objects (the figures) that stand out from their surroundings (the ground).