2. A survey was conducted at a local high school to determine the number of hours that a student studied for the final Mathematics 10 examination. To achieve a normal distribution, 325 students were surveyed. The results showed that the mean number of hours spent studying was 4.6 hours with a standard deviation of 1.2 hours.

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A:

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A:

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A: Please see the below picture for detailed solution.

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A:

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A:

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A: