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Consider the probability that exactly 21 out of 306 people will get the flu this winter. Choose the best description of the area under the normal curve that would be used to approximate binomial probability Answer 2 Points O Area to the right of 20.5 Area to the right of 21.5 O Area to the left of 20.5 O Area to the left of 21.5 Area between 20.5 and 21.5