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Barack Obama
Bill Clinton,the former President of the United States,believes that the proportion of voters who will vote for Barack Obama in the year 2012 presidential elections is 0.65.A sample of 500 voters is selected at random.
-{Barack Obama Narrative} What is the probability that the number of voters in the sample who will vote for Barack Obama in the year 2012 is between 340 and 350?
Confidence Interval
A selection of values from sample-related statistics, presumed to hold the value of an undetermined population characteristic.
Population Mean
The average of a set of characteristics (e.g., measurements, counts) of the entire population.
Standard Error
A statistic that measures the dispersion or variability of a sampling distribution, often used in estimating parameters.
Confidence Interval
A range of values that is used to estimate the true value of a population parameter with a certain level of confidence.
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