8. Three sets of data are described as follows: Set I: N 40, highest score is X-93, lowest score is X = 52 Set II: N is Set III: N 62, highest score is X = 35, lowest score X-26 25, highest score is X-890, lowest score is X230 For each set of data, identify whether a regular table or a grouped table should be used, and if a grouped table is necessary, identify the interval width that would be most appropriate.