week: Fifteen part-time Medical Representative in a certain drug company have the following commission (in pesos) for the last 12,500 17,700 22,800 14,800 19.400 24,800 15,200 20,200 27.600 15,300 21.200 28.200 15.900 22.100 35200 If the average and standard deviation of their commissions are 20.860 and 6.168 respectively, determine the corresponding commission for the: (Use Chebyshev Theorem) a. 2nd Standard deviation at the left side of the mean b. 1st Standard deviation at the right side of the mean