Use your SAS skills to find which GPA has the highest frequency? 2- Use your SAS skills to find only 10th, 30th, 50th, 70th and 90th percentile for variable Age? 3- Use your SAS skills to find the Interquartile and Range values for the variable called Hours_Stduied. 4- Generate a new dataset that has a new variable, which shows the the Z_Score for variable Test_Score. Save the new dataset as Z_Test_Score. 5- Use your SAS skills to calculate the range of data that falls within 1, 2, and 3 standard deviations of the mean for the variable test_Score . Save the output to a new dataset named Chebyshev_Theorem. According to chebyshev_theorem, 95% of data for Test_Score variable lies between what values