1. A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-andleaf display of the data is shown below. (10 scores) (1) Construct a frequency distribution for the rating data, using "30 but less than 40 scores" as the first class. (2) Construct a percentage distribution and a cumulative percentage distribution for the rating data, using "30 but less than 40 scores" as the first class. .