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Define the required probability for the normal distribution.

500 people were surveyed as well as asked to rate the NYC subway system with the rating scale of 1 (lowest to 5 (highest). The average rating was three with a standard deviation of 0.5.

1) describe what is the percentage of people surveyed that rated the subway system from 3 to 4

2) describe what is the percentage of people surveyed rated the Subway System from 1 to 3

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