A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Transcribed Image Text:Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with u = 106
and o = 27.
(a) What proportion of children aged 13 to 15 years old have scores on this test above 92 ? (NOTE: Please enter your answer in decimal form.
For example, 45.23% should be entered as 0.4523.)
Answer:
(b) Enter the score which marks the lowest 20 percent of the distribution.
Answer:
(C) Enter the score which marks the highest 15 percent of the distribution.
Answer:
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