Companies who design furniture for elementary school classrooms produce a variety of sizes for kids of different ages. Suppose the heights of kindergarten children can be described by a Normal model with a mean of 39.2 inches and standard deviation of 1.9 inches. a) What fraction of kindergarten kids should the company expect to be less than 38 inches tall? b) In what height interval should the company expect to find the middle 60% of kindergarteners? c) At least how tall are the biggest 10% of kindergarteners?
Companies who design furniture for elementary school classrooms produce a variety of sizes for kids of different ages. Suppose the heights of kindergarten children can be described by a Normal model with a mean of 39.2 inches and standard deviation of 1.9 inches. a) What fraction of kindergarten kids should the company expect to be less than 38 inches tall? b) In what height interval should the company expect to find the middle 60% of kindergarteners? c) At least how tall are the biggest 10% of kindergarteners?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Companies who design furniture for elementary school classrooms produce a variety of sizes for kids of different ages. Suppose the heights of kindergarten children can be described by a Normal model with a mean of 39.2 inches and standard deviation of 1.9 inches.
a) What fraction of kindergarten kids should the company expect to be less than 38 inches tall?
b) In what height interval should the company expect to find the middle 60% of kindergarteners?
c) At least how tall are the biggest 10% of kindergarteners?
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