In the 1992 presidential election, Alaska's 40 election districts averaged 1979 votes per district for President Clinton. The standard deviation was 568. 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 \sim N(\text{mean}, \text{standard deviation}) $ b. Is 1979 a population mean or a sample mean? [Dropdown option for selection]c. Find the probability that a randomly selected district had fewer than 1898 votes for President Clinton. [Input box for answer]d. Find the probability that a randomly selected district had between 1998 and 2201 votes for President Clinton. [Input box for answer]e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number. [Input box for answer]

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In the 1992 presidential election, Alaska's 40 election districts averaged 1979 votes per district for President Clinton. The standard deviation was 568. (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 1979 a population mean or a sample mean? Select an answer v c. Find the probability that a randomly selected district had fewer than 1898 votes for President Clinton.

In the 1992 presidential election, Alaska's 40 election districts averaged 1979 votes per district for President Clinton. The standard deviation was 568. (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 1979 a population mean or a sample mean? Select an answer v c. Find the probability that a randomly selected district had fewer than 1898 votes for President Clinton.

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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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Question

In the 1992 presidential election, Alaska's 40 election districts averaged 1979 votes per district for President Clinton. The standard deviation was 568. 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 \sim N(\text{mean}, \text{standard deviation}) $
b. Is 1979 a population mean or a sample mean?
[Dropdown option for selection]

c. Find the probability that a randomly selected district had fewer than 1898 votes for President Clinton.
[Input box for answer]

d. Find the probability that a randomly selected district had between 1998 and 2201 votes for President Clinton.
[Input box for answer]

e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number.
[Input box for answer]

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