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What is the difference between covalent and ionic bonds?
Standard Deviation
An index showing the degree of spread or variability among a collection of numbers.
Confidence Interval
A range of values, derived from the statistical analysis of data, that is likely to include the true population parameter with a certain level of confidence.
Sample
A subset of individuals or observations from a population used to estimate parameters or statistics of the whole population.
Mean
The average of a set of numbers, calculated by summing them up and dividing by the number of summands.
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