distributed with a mean of 82 minutes and a standard deviation of a 19 minutes Use the figure below to answer the following questions Area Under a Normal Curve 0 15 2 35 13 5 H 30 H 20 H 0 34 f 68 95 99 7 34 H o 13 5 2 35 0 15 H 20 H 30 a Estimate the probability that a randomly selected student will complete their final exam in less than 63 minutes b The final exam is scheduled to allow 2 hours Estimate the probability that a randomly selected student will need more than 2 hours to complete their exam c In a section with 160 students how many students do you expect will need more than 2 hours to complete their exams