Dottie's Tax Service specializes in federal tax returns for professional clients, such as physicians, dentists, accountants, and lawyers. A recent audit by the IRS of the returns she prepared indicated that an error was made on 11% of the returns she prepared last year. Assuming this rate continues into this year and she prepares 53 returns, what is the probability that she makes errors on:

1. More than 6 returns?(Round yourz-score computation to 2 decimal places and final answer to 4 decimal places.)
2. At least 6 returns?(Round yourz-score computation to 2 decimal places and final answer to 4 decimal places.)
3. Exactly 6 returns?(Round yourz-score computation to 2 decimal places and final answer to 4 decimal places.