a certain presidential election, Alaska's 40 election districts averaged 1,958.8 votes per district for a candidate. The standard eviation was 572.5. (There are only 40 election districts in Alaska.) The distribution of the votes per district for one candidate was ell-shaped. Let X = number of votes for this candidate for an election district. O Part (a) O Part (b) O Part (c) Find the probability that a randomly selected district had fewer than 1,700 votes for this candidate. (Round your answer to four decimal places.) 0.3 Sketch the graph. 0.0007 0.0006 0.0007| 0.0006 0.0005 0.0005 0.0004 0.0004

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Problem 1P
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In a certain presidential election, Alaska's 40 election districts averaged 1,958.8 votes per district for a candidate. The standard
deviation was 572.5. (There are only 40 election districts in Alaska.) The distribution of the votes per district for one candidate was
bell-shaped. Let X = number of votes for this candidate for an election district.
O Part (a)
.......
O Part (b)
O Part (c)
Find the probability that a randomly selected district had fewer than 1,700 votes for this candidate. (Round your answer to four decimal places.)
0.3
Sketch the graph.
0.0007
0.0007
0.0006
0.0006
0.0005
0.0005
0.0004
0.0004
0.0003
0.0003
0.0002
0.0002
0.0001
0.0001
X
4000
X
4000
1000
2000
3000
1000
2000
3000
0.0007
0.0007
0.0006
0.0006
0.0005
0.0005
0.0004
0.0004
0.0003
0.0003
0.0002
0.0002
0.0001
0.0001
X
4000
1000
2000
3000
4000
1000
2000
3000
Write the probability statement.
P( 0.62
O Part (d)
Find the probability that a randomly selected district had between 1,800 and 2,000 votes for this candidate. (Round your answer to four decimal
places.)
0.1238
O Part (e)
Find the third quartile for votes for this candidate. (Round your answer up to the next vote.)
23846
X votes
Transcribed Image Text:In a certain presidential election, Alaska's 40 election districts averaged 1,958.8 votes per district for a candidate. The standard deviation was 572.5. (There are only 40 election districts in Alaska.) The distribution of the votes per district for one candidate was bell-shaped. Let X = number of votes for this candidate for an election district. O Part (a) ....... O Part (b) O Part (c) Find the probability that a randomly selected district had fewer than 1,700 votes for this candidate. (Round your answer to four decimal places.) 0.3 Sketch the graph. 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 X 4000 X 4000 1000 2000 3000 1000 2000 3000 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 X 4000 1000 2000 3000 4000 1000 2000 3000 Write the probability statement. P( 0.62 O Part (d) Find the probability that a randomly selected district had between 1,800 and 2,000 votes for this candidate. (Round your answer to four decimal places.) 0.1238 O Part (e) Find the third quartile for votes for this candidate. (Round your answer up to the next vote.) 23846 X votes
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