Scores of adults on the Wechsler Adult Intelligence scale follow a Normal distribution. The middle 95% of scores on this test range 70 to 130. What is the standard deviation of the tests scores? A) 20 points B)100 points C) 5 points D) 7.5 points E) 15 points
Scores of adults on the Wechsler Adult Intelligence scale follow a Normal distribution. The middle 95% of scores on this test range 70 to 130. What is the standard deviation of the tests scores? A) 20 points B)100 points C) 5 points D) 7.5 points E) 15 points
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1GP
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Question
Scores of adults on the Wechsler Adult Intelligence scale follow a
A) 20 points
B)100 points
C) 5 points
D) 7.5 points
E) 15 points
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