Consider the following data: 26 48 50 40 44 33 26 47 49 26 39 22 25 26 31 29 51 28 27 49 51 42 41 33 45 24 36 50 ook int (a) Find the number of classes needed to construct a histogram. int Number of classes ences (b) Find the class length. (Round your answer to the nearest whole number.) Class length