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MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In the 1992 presidential election, Alaska's 40 election districts averaged 2032 votes per district for President Clinton. The standard deviation was 591. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.

a. What is the distribution of X? X ~ N(2032, 591)

b. Is 2032 a population mean or a sample mean? Population Mean

c. Find the probability that a randomly selected district had fewer than 1846 votes for President Clinton.
[Answer Box]

d. Find the probability that a randomly selected district had between 2178 and 2373 votes for President Clinton.
[Answer Box]

e. Find the third quartile for votes for President Clinton. Round your answer to the nearest whole number.
[Answer Box]

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