A Normal Distribution Has a Mean of µ = 80

question 8

Multiple Choice

A normal distribution has a mean of µ = 80 with σ = 20.What score separates the lowest 30% of the distribution from the rest of the scores?​

• A)X = 90.4​
• B)​X = 69.6
• C)​X = 110
• D)​X = 50

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Definitions:

Lateral Separation

The physical or conceptual distance between objects or entities on a horizontal plane.

Left Eye

Refers to the eye on the left side of the body, which, along with the right eye, provides part of the visual field and depth perception.

Perceptual Constancy

The accurate perception of objects as stable or unchanged despite changes in the sensory patterns they produce.

Retinal Image

The projection of visual stimuli onto the retina, the light-sensitive layer of tissue at the back of the eye, where it is converted into neural signals.