Examlex
Which of the following describes the shape of the normal curve?
Confidence Interval
A stretch of numerical indicators, obtained from sample statistics, envisaged to hold the secret value of a population characteristic.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating a confidence interval within which the true value lies.
σ
Symbol representing the standard deviation of a population in statistics.
Population Mean
The average of a set of values from the entire population, representing the central tendency of the total data set.
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