The IQ scores are normally distributed with mean 110 and standard deviation 17. (a) What percent of the population has an IQ score of 127 or more? (b) Find the 90th percentile of IQ scores. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. (a) The percent of the population with scores greater than or equal to 127 is%. (Type an integer or decimal rounded to two decimal places as needed.)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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The IQ scores are normally distributed with mean 110 and standard deviation 17. (a) What percent of the population
has an IQ score of 127 or more? (b) Find the 90th percentile of IQ scores.
Click here to view page 1 of the table of areas under the standard normal curve.
Click here to view page 2 of the table of areas under the standard normal curve.
(a) The percent of the population with scores greater than or equal to 127 is%.
(Type an integer or decimal rounded to two decimal places as needed.)
Transcribed Image Text:The IQ scores are normally distributed with mean 110 and standard deviation 17. (a) What percent of the population has an IQ score of 127 or more? (b) Find the 90th percentile of IQ scores. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. (a) The percent of the population with scores greater than or equal to 127 is%. (Type an integer or decimal rounded to two decimal places as needed.)
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