George Miller discovered that the average digit span is:
A) exactly 3.
B) about 7.
C) about 15.
D) more than 20.

Name: George Miller discovered that the average digit span is: A) exactly 3. B) about 7. C) about 15. D) more than 20.
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George Miller's famous theory, often summarized as "The Magical Number Seven, Plus or Minus Two," posits that the average digit span for humans—how many numbers we can hold in our working memory at once—is about 7.

George Miller Discovered That the Average Digit Span Is