Plese explain

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. Rating 1 2 3 4 5 Frequency 4 6 14 23 3 47 --1. How many of the rookies received a rating of 4 or better? Number of rookles 3-2. How many of the rookies received a rating of 2 or worse? Number of rookies b-1. Construct the corresponding relative frequency distribution (Round your answers to 2 decimal places.) Rating Relative Frequency 1 2. 3 4 5 b-2. What percent received a rating of 5? Percentage of rookies c. Select a bar chart for these data. Bar Chart Bar Chart A Bar Chart B Ratings of Pro-football Rookies Ratings of Pro-football Rookies Ratings of Pro-football Rookies 0.50 0.40 0.30 0.20 0.10 20.00 0.50 0.40 0.30 0.20 0.10 0.00 Relative Frequency 050 0.40 0 30 0.20 0.10 0.00 1 5 2 2 1 2 3 Ratings 3 Ratings Ratings O Bar Chart A O Bar Chart B O Bar Chart C