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1. By using a sampling technique  we ensure that we choose a sample of students that is representative of all 8:00 am classes.

   There are  varieties of sampling strategies: chance sampling includes random selection, permitting you to make sturdy statistical inferences approximately the complete organization. Non-opportunity sampling entails non-random selection primarily based on convenience or different standards, permitting you to without problems gather records.

   Random sampling is part of the sampling technique wherein every sample has an same possibility of being chosen. A sample chosen randomly is meant to be an unbiased representation of the overall population.

   explanation;

   we conclude the

   • 6 buildings in the college

   • 4 lecture halls in each building

   • 100 students in each lecture hall

   Since the students’ lecture hallsare on different building the samples are

   Dividing the students into groups, the students will be grouped by the buildings of their lecture halls.

   The number of students in each building is:

   There are 100 students in each building

   Then select at random an equal proportion of student from each building let 20 students in each building.

   Learn more about Sampling technique here:-https://brainly.com/question/24466382

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