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Progress saved Done Question 9 1/2 pts 9 3 98 0 Details The distribution of cell phones calls is normally distributed with mean 117 and a standard deviation of 9. (Round to 2 decimal places) a) 108 is standard deviations below the mean. b) 135 is standard deviations above the mean. c) -2.86 standard deviations below the mean is d) 2.27 standard deviations above the mean is Question Help: Message instructor