Which set of measures would give a clear conclusion about the data? 5, 6, 7, 7, 7, 8, 9 range—5 mode—7 median—9 mean—8 range—25 mode—8 median—8 mean—8 outlier—3 range—8 mode—none median—6 mean—9 range—4 mode—7 median—7 mean—7

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.