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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Some sources report that the weights of full-term newborn babies in a certain town have a mean of 8 pounds and a standard deviation of 1.2 pounds and are
normally distributed.
a. What is the probability that one newborn baby will have a weight within 1.2 pounds of the mean-that is, between 6.8 and 9.2 pounds, or within one standard
deviation of the mean?
b. What is the probability that the average of nine babies' weights will be within 1.2 pounds of the mean; will be between 6.8 and 9.2 pounds?
c. Explain the difference between (a) and (b).
a. The probability is.
(Round to four decimal places as needed.)
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Transcribed Image Text:Some sources report that the weights of full-term newborn babies in a certain town have a mean of 8 pounds and a standard deviation of 1.2 pounds and are normally distributed. a. What is the probability that one newborn baby will have a weight within 1.2 pounds of the mean-that is, between 6.8 and 9.2 pounds, or within one standard deviation of the mean? b. What is the probability that the average of nine babies' weights will be within 1.2 pounds of the mean; will be between 6.8 and 9.2 pounds? c. Explain the difference between (a) and (b). a. The probability is. (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Check Answer parts remaining Clear All ! @ #3 & 4 7 8 %3D delete 1 { Q W R T Y U tab A S F G H J K сaps lock return Z C V shift shift * LO
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