A group of 18 subjects (Group 1) were asked to assemble as many words as possible from a disordered set of letters in 2 minutes. The number of correct words put together was used as an indicator of each subject's ability. The results were: 6 2 4 4 7 3 6 7 7 5 6 5 6 5 6 1 7 3 Another group of 18 subjects (Group 2) performed the same task. The results were: 3 9 7 4 5 6 3 4 5 6 7 4 4 4 3 8 3 5

(a) For each group:

I. Build the frequency table. How many subjects exceed 6 words? How many do not exceed 4 words?

II. Find fashion, median and average.