(a) Find the number of classes needed to construct a histogram.

(b) Find the class length. (Round your answer to the nearest whole number.)

Consider the following data: 16 43 45 16 48 28 27 20 31 43 15 21 47 19 48 36 17 15 46 35 41 27 14 23 24 17 25 18 (d) Tally the number of values in each class and develop a frequency distribution. (Round your midpoint and percent answers to 1 decimal place.) Data Cumulative Lower Upper Midpoint Width Frequency Percent Frequency Percent 14 21 21