Question

Assume the standard deviation is $410 and that the amounts refunded follow a normal probability distribution. 1. What percent of the refunds are more than $3,100? 2. What percent of the refunds are more than $3,100 but less than $3,500? 3. What percent of the refunds are more than $2,250 but less than $3,500?

Answer 1

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Explanation:

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