Use the frequency distribution table below to answer the following questions. Age in Frequency: Best Actor years age when Oscar Was Won 20-29 1 30-39 28 40-49 36 50-59 15 60-69 6 70-79 1 80-89 For parts (a), (b), and (c), enter a number only with no spaces. (a) What is the class width? The class width is (b) What is the sample size? The sample size is (c) What are the class boundaries of the 20-29 class? The lower boundary is and the upper boundary is