26. Use the following data, which represent the ages of the 44 U.S. presidents at their first inauguration (as of 2011), to construct a frequency distribution with a first class of 42-47. 57 57 49 52 50 42 54 55 64 46 61 61 64 56 47 51 51 56 57 54 50 46 55 56 60 61 54 57 68 48 54 55 55 62 52 47 58 51 65 49 54 51 43 69