Examlex
What current flows from the battery in the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.
Margin of error
An expression of the amount of random sampling error in a survey's results.
Population variance
A measure of the dispersion of all data points within a population, squared from the mean of the population.
Confidence interval
A gamut of numbers, produced from sample statistics, believed to enfold the covert value of a population parameter.
Sample standard deviation
A statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
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