The Normal Distribution Has a Greater Percentage of Its Area

question 73

Multiple Choice

The normal distribution has a greater percentage of its area close to the mean and much less in the tails.
-Find the area of the shaded region. The graph depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test) .

• A) 0.7303
• B) 0.7938
• C) 0.7745
• D) 0.7619

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Definitions:

Sighted Children

Children who have the ability to see, as opposed to those who are visually impaired or blind.

Language Acquisition

The process by which humans gain the ability to perceive and comprehend language, as well as to produce and use words and sentences to communicate.

Garden Path Sentences

Garden Path Sentences are sentences that begin in such a way that a reader's most likely interpretation will be incorrect; the reader is led down the "garden path."

Aphasia

A language disorder caused by damage to the brain, affecting the ability to communicate, such as in speaking, reading, writing, or understanding.