SAT scores are normally distributed with mean 1000 and standard deviation 104. a) For an individual chosen at random from all SAT takers, what is the probability that their score is 917 or less? Give your answer to three decimal places. Probability = y b) For a simple random sample of three individuals, what is the probability that their average SAT score is 917 or less? Probability = ,o c) For a simple random sample of three individuals, what is the probability that all three have scores below 917? Probability = x