




Card 15 / 25:
In the 1992 presidential election, Alaska’s 40 election districts averaged 1,956.8 votes per district for President Clinton. The standard deviation was 572.3. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bellshaped. Let X = number of votes for President Clinton for an election district.
State the approximate distribution of X .Is 1,956.8 a population mean or a sample mean? How do you know?Find the probability that a randomly selected district had fewer than 1,600 votes for President Clinton. Sketch the graph and write the probability statement.Find the probability that a randomly selected district had between 1,800 and 2,000 votes for President Clinton.Find the third quartile for votes for President Clinton.

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Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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