Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 and σ=27. (Npte: Please use at least 3 decimal places for your z-score for all parts.) (a) What proportion of children aged 13 to 15 years old have scores on this test above 88 ? (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 30 percent of the distribution.Answer:  (c) Enter the score which marks the highest 10 percent of the distribution.Answer:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=106 and σ=27. (Npte: Please use at least 3 decimal places for your z-score for all parts.)

(a) What proportion of children aged 13 to 15 years old have scores on this test above 88 ? (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 30 percent of the distribution.
Answer: 

(c) Enter the score which marks the highest 10 percent of the distribution.
Answer: 

 

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