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6 It is estimated that 11% of those taking the quantitative methods portion of the certified public accountant (CPA) examination fail that section. Sixty five students are taking the examination this Saturday. 10 a-1. How many would you expect to fail? (Round the final answer to 2 decimal places.) points Number of students 7.15 eBook a-2. What is the standard deviation? (Round the final answer to 2 decimal places.) References Standard deviation 2.52 b. What is the probability that exactly three students will fail? (Round the final answer to 4 decimal places.) Probability c. What is the probability at least three students will fail? (Round the final answer to 4 decimal places.) Probability