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From a Population of 500 Elements, a Sample of 225

question 55

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From a population of 500 elements, a sample of 225 elements is selected. It is known that the variance of the population is 900. The standard error of the mean is approximately


Definitions:

Direct Instruction

A teaching method that is structured, sequenced, and led by teachers, focusing on clear, explicit instruction of academic skills.

Creativity

The ability to produce original and valuable ideas or objects.

Parent Participation

The involvement of parents in the educational and developmental processes of their children.

Cooperation

The process or action of working together to the same end or goal, often within a group or team.

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