Fifty pro-football rookies were rated on a scale of 1 to 5, based on performance at a training camp as well as on past performance. A ranking of 1 indicated a poor prospect whereas a ranking of 5 indicated an excellent prospect. The following frequency distribution was constructed. Frequency 5 9 Rating 1 2 1345 13 19 4 a-1. How many of the rookies received a rating of 4 or better? Number of rookies 23 a-2. How many of the rookies received a rating of 2 or worse? Number of rookies 14 b-1. Construct the corresponding relative frequency distribution. (Round your answers to 2 decimal places.) Rating Relative Frequency 1 0.10 2 0.18 3 0.26 4 0.38 5