MA100 Lecture : MA100 30th October,2013.doc

Prove that if n > 4 is not a prime, then at least three of the n-th roots of unity are 21. not primitive n-th roots.

Complete the following statements In general, % of the values in a data set lie set lie at or below the 78^th percentile. % of the values in a data set lie at or above the 6^th percentile. If a sample consists of 800 test scores, of them would be at or below the 56^th percentile. If a sample consists of 800 test scores, of them would be at or above the 62^th percentile.