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In an interview, a human resource (HR) specialist asks candidates 20 questions with 5 possible multiple choice answers to each question. What is the probability of the following candidates for success given the following assumptions: a. HR has the last answer always correct, candidates select answers at random. b. HR's solution is in a random location and student selects an answer at random. Note: assume the interview has only 3 questions, trace some (approx. 10) random candidates for each scenario but run a larger sample on the computer and do not respond philosophically without support