Multiple Choice
Scores of adults on the Wechsler Adult Intelligence Scale (a common IQ test) follow a Normal distribution. The middle 95% of scores on this test range from 70 to 130. What is the standard deviation of the test scores?
A) 100 points
B) 20 points
C) 15 points
D) 7.5 points
E) 5 points
Correct Answer:
Verified
Correct Answer:
Verified
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