MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Suppose that the age of students at George Washington Elementary school
is uniformly distributed between 5 and 11 years old. 50 randomly selected
children from the school are asked their age. Round all answers to 4
decimal places where possible.
a. What is the distribution of X? X - U(
Suppose that 50 children from the school are surveyed. Then the
sampling distribution is
b. What is the distribution of ? ¤ -
N(
c. What is the probability that the average of 50 children will be
between 7 and 7.7 years old?
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Transcribed Image Text:Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old. 50 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - U( Suppose that 50 children from the school are surveyed. Then the sampling distribution is b. What is the distribution of ? ¤ - N( c. What is the probability that the average of 50 children will be between 7 and 7.7 years old?
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