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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In the 1992 presidential election, Alaska's 40 election districts averaged 1993 votes per district for
President Clinton. The standard deviation was 584. (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(
b. Is 1993 a population mean or a sample mean? Select an answer v
C. Find the probability that a randomly selected district had fewer than 2053 votes for President
Clinton.
d. Find the probability that a randomly selected district had between 2074 and 2208 votes for
President Clinton.
e. Find the 95th percentile for votes for President Clinton. Round your answer to the nearest whole
number.
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Transcribed Image Text:In the 1992 presidential election, Alaska's 40 election districts averaged 1993 votes per district for President Clinton. The standard deviation was 584. (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( b. Is 1993 a population mean or a sample mean? Select an answer v C. Find the probability that a randomly selected district had fewer than 2053 votes for President Clinton. d. Find the probability that a randomly selected district had between 2074 and 2208 votes for President Clinton. e. Find the 95th percentile for votes for President Clinton. Round your answer to the nearest whole number.
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