Examlex
The lecturer of a business statistics class wanted to find out the average amount of time per week her students spent studying for the class.She divided the students into the left,right and centre groups according to the location they sat in the class that day.One of these 3 groups was randomly selected and everyone in the group was asked the average amount of time per week he/she spent studying for the class.This is an example of a cluster sample.
James River
A significant river in Virginia, pivotal in the state's history and development, and serving as a key waterway for transportation and commerce.
Eastern Pennsylvania
A region in the Commonwealth of Pennsylvania, characterized by its rich historical importance, varied landscapes, and significant cultural and economic contributions to the state.
Sam Houston
An American soldier and politician, significant for his role in bringing Texas into the United States as a constituent state.
Texas's Secession
The act in 1861 when Texas declared its secession from the United States to join the Confederate States during the American Civil War.
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