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Why do elements in the same group tend to have similar chemical properties?
Senatorial Election
A political process through which individuals are elected to represent a state or equivalent entity in the senate.
Expected Value
The average of all possible outcomes of a random variable, weighted by their respective probabilities.
Sample Proportions
Statistics used to estimate the fraction or percentage of a population that exhibits a particular characteristic, based on a sample.
Population Proportions
The fraction or percentage of members in a population that exhibit a particular characteristic.
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