Examlex
A certain part of the electromagnetic spectrum ranges from 200 nm to 400 nm.What is the lowest frequency associated with this portion of the spectrum? (c = 3.00 × 108 m/s)
Confidence Intervals
An array of values, based on statistics from a sample, which is assumed to enclose the value of an unidentified population feature.
Population Mean
The average value of a characteristic in a population, calculated by summing all the data points and dividing by the number of data points.
Sample Means
The average value of a set of data samples from a population.
Margin of Error
An expression of the amount of random sampling error in a survey's results, indicating how much the survey results might differ from the true population value.
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