An organization reported that 743,000 students had 4 years of high school math, 204,000 had three years of high school math, 30,000 had two years, and 16,000 had one year of high school math when they took their SAT exams. Let X = the number of years of high school math. (a) Compute the variance of X, o2. (Round your answer to six decimal places.) 62 = 0 (b) Calculate the standard deviation of X, o. (Round your answer to four decimal places.) O= yr (c) Use the Z-score method to determine whether any outliers exist. Identify the outliers. (Select all that apply.) 4 years of high school math 3 years of high school math 2 years of high school math 1 year of high school math 10 none of the above log.. Use the Z-score method to determine whether any moderately unusual data values exist. Identify the moderately unusual data values. (Select all that apply.) DOC 4 years of high school math my lov 3 years of high school math 2 years of high school math 1 year of high school math none of the above