Suppose that temperatures (in C ) of the last 10 days in Tabuk were: 21,23,27,19,25,21,26,31,29 and 24 a) Find the 17th percentile (P17) of the temperatures, what does this value mean? 10) Suppose that the mean of a set of 20 observations is 70 . If the mean of the first 5 observations in this set is 100 , what is the mean of the last 15 observations?.