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It Is Known That College Students at a Local Community

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It is known that college students at a local community college study 12 hours per week with a standard deviation of 5 hours.What is the expected value and variance for a sample of nine students?


Definitions:

Probability

The likelihood of a specific outcome occurring, quantified as a number between zero and one, zero indicating impossibility and one indicating certainty.

High Blood Pressure

A state where the pressure of blood on the walls of arteries is excessively high, commonly resulting in health issues like heart disease.

Clinical Trial

A research investigation in which people volunteer to test new treatments, interventions or tests as a means to prevent, detect, treat or manage various diseases or medical conditions.

Probability

The calculation of the likelihood of an event's occurrence, represented as a numeric value between 0 and 1.

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