Construct a stem-and-leaf plot for each of the following sets of data.a) Minutes on the bus to school:8, 12, 18, 10, 13, 24, 30, 19, 22, 24, 19, 14, 17, 32, 21 b) Minutes studying:54, 63, 52, 54, 21, 39, 48, 55, 32, 68, 53, 44, 49, 36, 27